Training pants – Children’s companions to become dry

WindelManfaktur Trainer Baumwolle und Merino


WindelManufaktur Merinotrainer



What are training pants for toddlers?

Training pants are a practical back-up for your child if it is learning to become dry. They are a popular "mishap protection“, even for (part-time) diaper-free children.

  • underpants with a light absorbent layer as a back-up for the phase of becoming potty/toilet-trained
  • These pants make it easier for the child to pull them on and take them off while learning to use the potty/the toilet
  • Also suitable as a back-up for diaper-free/part-time-diaper-free/ Elimination Communication children = "diaper-free pants"
  • Practical alternative to nappy-free belt system or cloth diaper


Why training pants?

For many children training pants are a helpful companion during the phase of getting dry because they are easier to put on and take off. In this way the child can find his own way to the potty/the toilet more independently and be happy about this sense of achievement. Even children who do not want to be wrapped in diapers already quite early are more likely to accept the training pants. With the reinforced insert, training pants or nappy-free pants help absorbing small mishaps. So it is not necessary to change the trousers immediately and, even in a supermarket, you do not need to be embarrassed if the already potty/toilet-trained child has wet or pooped in his pants. Training pants also give a safer feeling to parents and child even during longer car or train trips. 

When the child is completely dry, the training pants can be still worn without inserts as underpants. For this reason we place the snaps on the pants efficiently, so that they do not press.

In addition, a hint from us: the expression "cleanliness education" referred to toddlers/babies is no longer used today. The term implies that babies/toddlers are not clean. But that is not at all so! Babies are always clean and also try not to stain themselves with their excretions. This happens also if they are wearing nappies: most babies pee right at the moment when the diaper is off. Of course, they do not do that to "annoy" their parents - but because they just do not like to wet around. Because of their age, the time that babies can withhold the urine is naturally very short and as they can not speak already, there is simply no choice for them but to pee in the diaper. (At this point, the nappy-free concept starts: it is believed that babies are able to communicate their excretory needs and practice recognizing them with their parents.)


Cleanliness education or potty training? Why we do not use this words and believe that children just become "dry".

For the same reason that we reject the term "cleanliness", we also do not use the terms cleanliness education, potty training and toilett training. Babies and children are competent and, within the limits of their physical and communicative possibilities, they do everything to keep their bodies clean. We adults can show them how potty and toilet have to be used and exemplify how to handle their excretions in a natural and positive way. Therefore we, the WindelManufaktur, prefer to say that children learn to get dry.

The older the babies get, the clearer they will let their parents understand that they have to pee. At this point of time, children are usually able to hold pee pee and poo poo for a longer period of time and also deliberately excrete (one of the factors for this point of time is the individual brain maturity).

Traditionally, people say than that the child has now become "dry". This is often the age when children are reluctant to be wrapped and prefer to stay without a nappy (many parents call this "diaper strike"). Training pants, which help the becoming-dry-process of children, fill this gap, because they serve as a small back-up - as a "reinsurer" - for the stage in which the child wants to get dry.

 WindelManufaktur Merinotrainer Situation auf Toilette


WindelManufaktur’s training pants - what makes them so unique?

WindelManufaktur Merinotrainer Reh

A short preliminary remark: it took us over 1.5 years to develop our training pants. Of course this product can also be developed faster. But not for us - we wanted it BETTER.

Here are all the advantages of the training pants of WindelManufaktur at a glance:

  • They are discreet and not too voluminous: we have done everything to save material and to make the training pants really look like children's underwear. Your child can wear his normal clothes over these pants!
  • If the child then no longer needs training pants, our training pants can be worn easily as classic briefs. They are specially designed so that nothing can squeeze or rub.
  • The cut is athletic. The leg and the abdominal cuffs are optimally positioned for a complete freedom of movement.
  • The inserts are waisted between the legs, so that the pants always fit perfectly and never bother.
  • Our size system ensures an optimal correct fit: from our good experience with the swim diaper sizes, we have developed the sizes and cuts completely on our own and from the size specifications of the babies of our customers!
  • Our woolen training pants are made of high-quality merino wool - guaranteed scratch-free and cuddly for the soft children's skin.
  • The system with exchangeable inserts is awesome - you can regulate the absorption capacity and make it perfectly tailored to the needs of your child.
  • The modular system minimizes the amount of laundry. This is good for the environment and saves you a lot of work.


Material variants of the training pants

We designed two variants of the training pants:

  • Our cotton training pants are made of a soft, stretchy cotton jersey (100% cotton)
  • Our merino wool training pants are made of cuddly, scratch-free merino wool (100% wool)

WindelManufaktur Jerseytrainer Sommersterne DetailWindelManufaktur Merinotrainer Meer

The special feature lies inside the trainer pants.

WindelManufaktur Merinotrainer Blick nach Innen

No matter which outer material - the inner face works basically always with the same procedure. The inserts are buttoned to the snaps. These can be taken off very quickly, when they are wet, and buttoned again, when they are dry. They produce just very little laundry. We have decided to offer different types of inserts.

An insert with a moisture protection membrane made of PUL can optionally be buttoned into our cotton training pants. In this way, in case of a mishap, you just need to change only the insert and not the whole pants or even the trousers.

Our merino wool training pants are made with inserts without a moisture protection membrane, if they are previously greased with lanolin. For the greasing you need our wool lanolin treatment. Soon there will be an information page about wool, because wool is a wonderful material and we at WindelManufaktur love natural materials! Wool is very popular by many parents, because it also absorbs moisture, cares for the skin and ensures a skin-friendly climate in the diaper area. Later, the additional insert can also be omitted, if there are no or few small mishaps to worry about. Then the training pants become  completely normal underpants.

For this reason, we were particularly careful when designing the training pants. We wanted them to look like normal trousers and choose and placed the snaps so that they do not push or bother.


WindelManfaktur Trainer Baumwolle hinten



Buttonable inserts for training pants

The inserts for our training pants come in four different variants of material and two sizes.


Size of the inserts

Since our training pants come in the four sizes XS, S, M and L, the inserts must fit well into them. Too large or too small inserts let the training pants stick out or push too much and then it leaks very quickly.

Which size of the training pants and of the inserts do you need?

  • For our training pants in XS and S we designed the inserts in XS/S.
  • For our training pants in M and L we designed the inserts in M/L.

The inserts are high waisted - thanks to this constructive detail, they do not push the skin of the children and they cuddle up very well to the childish proportions. The waistband is not exactly in the middle! The longer part of the insert comes on the back side of the training pants, the shorter on the front.


Material of the inserts

Our inserts are made of two different absorbent materials - and by each one you can still choose, whether there should be a waterproof membrane on the back side or not. In the following text, we explain when you should use them which and where the differences are.

Insert made of terry cloth

WindelManufaktur Trainereinlagen Frottee

These are double sewn inserts for training pants made of cotton terry cloth fabric.

Our terry cloth fabric is of selected quality, because of the used yarn as well as he weaving technique. The cotton planted in Turkey conforms to the dispositions of the certified organic cultivation (kbA) and the weaving technique is a special chain weaving (Mayer-Warp), which produces a highly durable but still lightweight fabric. This fabric is made especially for WindelManufaktur because such qualities are rarely demanded on the market.
The special feature of the fabric is the small addition of polyester - with it the fabric remains soft and cuddly, even without a dryer and in calcareous areas for a long time.  


Insert made of hemp fleece

WindelManufaktur Trainereinlagen Hanf

These are double sewn inserts for training pants made of hemp fleece fabric

The hemp fleece insert is made of a cuddly, robust quality with a velvety surface. The thick hemp fleece is sewn in two layers and consists of 55% hemp and of 45% organic cotton (kbA, certified quality). The absorption capacity is enormous and surprising for everyone - even if you already know hemp inserts.


Option for inserts: with reinforced, waterproof layer

All inserts for our training pants can be purchased with an optional moisture protection membrane made of PUL. Thanks to the PUL layer, the training pants are almost waterproof and give more security, especially at night or when the excretory communication between you and your child is not (yet) working so well. PUL stands for "polyurethane laminate" and refers to a substance which is bonded (glued) to a polyurethane film. The PUL used by the WindelManufaktur is CPSIA certified, does not contain lead, BPA or phthalates and is also food safe. It is made of 95% polyester and 5% polyurethane and is made entirely in the USA.

Attention: The PUL of our training pants system is sewn only under the insert. Thus, with large volumes of fluid, it may happen that the absorption capacity of the insert is exceeded and the cuffs of the training pants get wet. The PUL membrane therefore does not provide a 100% guarantee that clothing worn over the training pants will remain dry. The training pants must be replaced after a bigger mishap, if the insert has not been sufficient and is not a substitute for a diaper!

Which insert is optimal for your child depends on its excretion amount. Larger quantities of urine/feces are easily absorbed by the double sewn terry cloth fabric (up to 115 ml). For children who can not keep the first few drops or who signalize their needs too late, when they have to go to the potty/the toilet, a double sewn hemp fleece insert is often enough. They have an absorption volume of around 85 ml.

→ Further information about our inserts.


We always pay attention to the highest quality and choose only pollutant-free materials!

When purchasing all of the materials we use, we pay close attention to the origin and production of the raw materials. We consciously source our raw materials from democratic countries with fair working and production conditions. All fabrics are manufactured in compliance with Oeko-Tex guidelines. That means, our fabrics do not contain chemicals that are dangerous to the skin.


Are training pants the same as (reusable cloth) nappies?

The difference between training pants and nappies is actually very simple and clear.

Nappies are there to catch small and large amounts of excretions of the child and keep them completely sealed.

The classic disposable diaper also has the goal to keep the butt dry. The disadvantage is: babies lose the feeling for their excretions. In the long term, the child considers the diapers to be a correct place for his excretions and later has to learn anew that pee and poo are NOT usually excreted near the body, but belong into the toilet.

With reusable nappies, at least, the feeling of moistness is maintained. Depending on the insert combination, they can absorb amounts of liquid of up to 500 ml. Cloth diapers are therefore designed to serve primarily as a place for the child excretions in the first months of life.

Training pants are clearly different from this!

Because they are not designed to catch small or big amounts of excretions in their entirety. Training pants or nappy-free briefs are intended for those children who have just learned or are learning to go to the potty/toilet or who are kept clean (partially) nappy-free since they were younger.

Sometimes smaller and larger mishaps usually happen in the phase of potty/toilet training, in diaper-free children, as well as already trained children. This is normal and can have very different causes (for example growth spurt, a new sibling or move to another flat). To put a diaper on a nappy-free or almost dry child at this time (again) would not be a logical step. Neither for the parents, nor for the child.

Even in the kindergarten a diaper will be used again just in the rarest cases, if the child has already learned to go to the potty/the toilet. Training pants have been developed to catch the first drop or a minor mishap, just in case you do not want the trousers become completely wet and you are therefore obligated to change them directly. If something goes wrong, that is also completely normal, but it can mean that the absorption capacity of the training pants is exceeded and surrounding textiles also get wet. Parents who use training pants need to be aware that their child, after a mishap in their pants, is wet and the pants should be changed as soon as possible.

WindelManufaktur Merinotrainer

Like in the case of reusable nappies, it is important that a moisture feedback is given to the child and it can feel when the mishap happens.

Training pants are therefore also very interesting for parents who have otherwise wrapped their children with super absorbent disposable diapers and now want to leave them out for the purpose of potty/toilet training. In these cases, it will occur more often at the beginning that the absorption capacity of the additional insert inside the training pants is exceeded and eventually a dark spot on the trousers is created. But that should not be a reason to get angry or possibly scold the child for it. Rather, it should simply be accepted and the parents should lovingly show to the child what happens when it pees in the trousers. This "optical moisture feedback" is also a helpful aspect of potty/toilet training.


Are WindelManufaktur’s training pants 100% waterproof?

Like in the case of reusable nappies, it depends on the relationship between the amount of liquid and the absorption capacity of the inserts.

If the absorption capacity is exceeded, because the child pees more than twice in the cloth diaper or the whole full bladder is emptied in the training pants, then the answer to the question above is no. But that has a good reason! As already described above in the Differentiation from (fabric) diapers, an emotional and also optical moisture feedback is important in the process of learning to get dry. It is important that, especially for children wrapped in disposable diapers, the feeling of moistness is reflected, so that they can notice that something is coming out of their body.

For 100% leak tightness, the training pants would have to be provided with the moisture protection membrane made of PUL all around, which could quickly become uncomfortable because of the reduced air circulation. That's why we have kept the use of the PUL to a minimum and sewn it only under the inserts, so that small amounts of  liquids (up to 120 ml) are stopped, if a mishap happens.

If you still want to have all-round tight training pants, you should choose our merino wool version. If they are greased with lanolin, they keep tight and also absorb additional liquid, without passing it on directly to surrounding textiles. This also results in less laundry, because they are extremely quickly dry, need only be aired and can be partially put on directly again, even after a small mishap.

WindelManufaktur Merinotrainer



You can find the perfect size for your child in this size chart here below. Just to be sure that you choose the right one, you can also use a tape measure to take measurement of the waist circumference (1) and leg circumference (2) of your child.

SizeWeightwaist circumference (1)         leg circumference (2)    Groessen-Windelmanufaktur-Trainerhose
XS4-6 kgtill 40 cmtill 17 cm
S6-8 kgtill 44 cmtill 23 cm
M8-12 kgtill 48 cmtill 27 cm
L12-17 kgtill 52 cmtill 31 cm


How do you wash the training pants?


Washing instructions for cotton training pants

You can easily wash the cotton training pants together with your coloreds at 30°C or even at 60°C.

Washing instructions for merino wool training pants

The training pants should be washed only in lukewarm water. This also applies to hand wash linen and to laundry, which has to be washed with the wool program of the washing machine. In these cases we recommend to wash at 30 degrees. In addition, we strongly recommend the use of suitable detergents, e.g. Lenya wool wash detergent. Please follow carefully and in any case our washing instructions on the care labels sewn inside our products.

The training pants are ready to be used if, by taking a test and putting them under the water-tap, the water rolls off and does not make the pants wet. If the insert is wet, the training pants do not always have to be washed too frequently: as long as they are only wet, it is more than enough to ventilate them very well. Because of the natural self-cleaning capacity of wool, the woolen training pants can be used for so long without needing to be washed.  

"Wool can absorb water vapor inside the fiber, but the surface repels water. It absorbs up to one-third of its dry weight of water without feeling wet and it leads out moisture much faster than cotton, for example. Since woolen goods (based on their total volume) consist of up to 85% air, they are good heat insulators. Body heat escapes only a little. Colloquially, it is therefore said that wool "warms" well, although wool by itself mainly and only reflects the heat radiation of the body. Wool badly absorbs dirt, is sweat-repellent and antistatic.

Due to its "recovery capacity", wool hardly creases because the fiber is very elastic. Wool items are practically iron-free. Wool is very resistant to color and hardly flammable. It does not burn, it just carbonizes. Wool, unlike synthetic fibers, absorbs just few smells (e.g. sweat) and has a natural self-cleaning function. Absorbed odors are released into the air again and wool soon smells neutral and fresh if exposed to the open air again. Wool can chemically bind sweat and urine and thus neutralize them for a long time.“ (source:

Washing the inserts

You have to wash the inserts, with or without moisture protection membrane, at 60°C, preferably with a good laundry detergent in powder form (ecological, sensitive).

Please do not use bleach or softener! Please do not iron the training pants at hot temperature or tumble dry!

How do you put the training pants on?

  • Button the insert into the trainings pants.
  • Your child has to pull on or take off  the training pants as normal underpants. Of course, children who are already able to dress themselves on their own, can do this alone. If not, just help them doing that.
  • If the insert has become wet, pull the training pants down only till its knees, unbutton the insert, button in a dry insert and pull the training pants up again.
  • If a bigger mishap exceeds the absorption capacity of the insert and also wets the training pants through, do not be mad about it. This can happen and is quite normal during the potty/toilet training process. More information about this topic here.

WindelManufaktur Trainer Merino heruntergelassen


Where do I store the dirty training pants?

  • We recommend to keep wet inserts and trainings pants in a large wetbag.
  • For on the go, there are our wetbags also in a smaller version.
  • The training pants made of merino wool, as long as they are just wet, can be dried on the fresh air, aerated and then used again.
  • Wet jersey training pants should be added directly to the coloreds, or dried and stored until you wash the next available coloreds.

    WindelManufaktur Wetbag Waschen


    Which model of training pants is the right one for my child?

    Before choosing the right training pants of WindelManufaktur, you should answer the following questions first: 

    • What size does the child need? (see size chart above)
    • Is the child kept clean without diapers since the first months of its life (part-time)? If so, you may need less absorption capacity in the training pants.
    • When a mishap happens, how much fluid is usually excreted? You can choose the inserts depending on how much the child excretes.
    • Goes the child already (independently) on the potty/the toilet and can "stop" a bigger mishap in time?
    • Is my child allergic to merino wool?

    In the following chart, we give you an impression of the liquid quantities for which the respective inserts are intended and what they are primarily suitable for. If you have any questions, feel free to contact our customer service at any time ([email protected]).

    insert type

    suitable for…

    approx. absorption capacity

    Double sewn hemp fleece insert without PUL

    • Mostly small quantities of fluids
    • High hit rate by holding on fluids
    • High potty/toilet security (the child says reliably if it has to pee)
    • about 85 ml

    Double sewn hemp fleece insert with PUL

    • Predominantly small quantities of fluids
    • High hit rate by holding on fluids
    • Middle potty/toilet security (the child says mostly reliably if it has to pee)
    • about 90 ml

    Double sewn terry cloth insert without PUL

    • Rarely small quantities of fluids
    • Low hit rate by holding on fluids
    • Low/middle potty/toilet security (the child does not say reliably if it has to pee)
    • about 115 ml

    Double sewn terry cloth insert with PUL

    • Big quantities of fluids
    • Low hit rate by holding on fluids
    • Low/middle potty/toilet security (the child does not say reliably if it has to pee)
    • about 120 ml

    WindelManufaktur Trainer Merino kleine Toilette



    Do the greased merino wool training pants also work as diaper covers for the night?

    Yes, they definitely do. The training pants made of merino wool should close well on the leg cuffs and waist to prevent leakage of urine. To obtain a special leakage protection, the merino wool fabric has been sewn double-layered. Merino wool is not only great for protecting against moisture, it also absorbs fluid/urine, without releasing it to the surrounding clothing. This additionally increases the absorption capacity of the night training pants. At the same time, the merino wool remains breathable and temperature-regulating.

    In order to maintain the natural moisture protection of the wool, the training pants / diaper cover should be greased regularly and as needed. The trainings pants do not need to be washed after contact with urine, it is sufficient to aerate them. Only stronger stains made by feces should be washed out directly.


    How many training pants do i need?

     Trainerhöschen Merino Meer Setplus WindelManufaktur Trainer Einlagen

    The training pants are suitable for many different functions, from diaper free till potty/toilet-trained. It is difficult to make a general statement. We offer the following different products in the training pants assortment:

    • Merino wool training pants with two fitting inserts (terry cloth and hemp, both without PUL back side)
    • Cotton training pants with two fitting inserts (terry cloth and hemp, both with PUL back side)
    • Set of five inserts fitting to the training pants, each suitable for size XS/S and M/L:
      • Set of 5 terry cloth inserts with PUL layer
      • Set of 5 terry cloth inserts without PUL layer
      • Set of 5 hemp inserts with PUL layer
      • Set of 5 hemp inserts without PUL layer

    For a single test, it is enough to purchase a pair of training pants plus two inserts. If you want to use the training pants in everyday life, you should have at least one package of five inserts per training pants. It should be remarked, that you always have to use the inserts in the correct size.

    If the child always carry training pants (not just in special situations), then it makes sense to have at least three training pants and three inserts packages.

    The inserts fit equally in both training pants - so it is also possible to use the inserts with PUL back side inside the merino pants (for even better moisture protection - this means in addition to the moisture protection made by the greased wool) and in the jersey training pants the ones without PUL back side (if the child is already very potty/toilet-trained).

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