Knee without reinforcement vs. Babbily knee reinforcement
Martindale method
Organic cotton fleece
Adjustable waistband & length
Robust & water-repellent at the knee
Side pockets
Pickup currently not available
Shipping: AT €4.95 | free from €90
DE €10.90 | from €100 €5.95 | free from €175
Size tip
Don't size up. Choose by your child's current height — the room to grow is already built into the cut.
Cosy and warm – ideal for children who get cold quickly
Stays comfortable indoors – breathable, absorbent organic cotton
Stretchy knees with Cordura® - knee patch reached 100,000 rubs
Leg cuffs over the shoe – keep ankles protected from the cold
Yes. The knee patches on Babbily trousers are specially developed to last much longer than ordinary children's trousers.
While many conventional fabrics show wear after around 10,000–20,000 rubs (source: apshan.com), the knee patch reached 100,000 rubs in the Martindale test (the knee patch was tested, not the whole garment) – many times the strain of normal everyday play. Actual durability depends on use.
Important: extreme knee slides on sports-hall floors – think football goal celebrations – can of course damage this fabric too.
For everything else children do – climbing, crawling, sliding, romping – the reinforced knees are made for it.
Go by your child's current height.
Babbily sizes grow across several sizes and deliberately fit a little looser at first.
For more room to grow: choose by current height.
For a closer fit: choose one size smaller – with correspondingly less growing room.
💡 Growing needs space – not just in length, but also in width.
Babbily trousers are designed to be worn for many months – often for a whole year.
The cut gives children plenty of freedom of movement and grows with them for a long time thanks to the elastic waistband and adjustable length.
Of course, how long they actually last also depends on how wild your child's adventures are. Many parents tell us, however, that their Babbily trousers are worn for over a year and then even handed down to siblings.
To make them fit and last as long as possible:
Don't size up
The room to grow is already built into the cut. That way the knee patch sits exactly where it should protect.
Wash gently
Ideally at 30 °C, turned inside out. This is gentle on the organic cotton and keeps the surface nice for longer.
Rotate
Natural fibres appreciate small breaks. If the trousers aren't worn every day, they keep their shape for longer.
Main fabric: Cotton Fleece (100% organic cotton, 305 g/m², GOTS certified – KIWA BCS 26126) – soft and cuddly – ideal for everyday wear in winter
Knee reinforcement: 4-way stretch Cordura (94% polyamide, 6% elastane) – exceptionally durable, tested to 100,000 rub cycles (Martindale), water-repellent and easy to clean.
Buttons: Corozo (stone nut) – 100% biodegradable.
Care: Wash inside out at 30 °C without optical brighteners. Do not tumble dry to prevent shrinking
Shipping time
• Ready to ship in 1–4 business days
• Delivery time after dispatch: AT 1–3 business days, DE 3–7 business days
Shipping costs
• Austria: €4.95 | free from €90
• Germany: €10.90 under €100 | €5.95 from €100 | free from €175
Free delivery applies to full-price items only and cannot be combined with discounts or reduced items.
Returns & exchanges
• 14-day statutory right of withdrawal, voluntary returns up to 30 days after receipt
• Return shipping costs are paid by you
• Faulty or incorrectly delivered items: please contact us first – for justified complaints we cover the return shipping costs
• No direct exchanges – please place a new order for the size or colour you need
Partial returns: free-shipping thresholds and multi-buy discounts are recalculated based on the items you keep.
Questions about returns or help choosing a size: office@babbily.eu
Full details in our refund policy.
Babbily's fleece pants are perfectly designed to accompany children throughout the day. They combine the comfort of pull-on pants with the warmth of thermal pants , while boasting a classic cut that also looks great at school.
Children spend a large portion of their time at school, constantly switching between different activities. Sometimes they're sitting in the classroom, sometimes they're running around during recess – both indoors and outdoors. For this, they need comfortable clothing that not only fits well but is also easy to put on and take off.
It has to be breathable so children don't sweat, yet durable enough to withstand a soccer game during recess. Winter presents a special challenge: The clothing has to be warm enough to withstand the walk to school, but also comfortable to wear indoors.
That's where Babbily comes in. Our soft children's fleece pants made from pure organic cotton offer exactly the comfort that kindergarten children need. The fabric is especially soft on the skin and free from harmful chemicals. So your child can play safely and comfortably all day long. And when it's time for recess, the warm pants will keep them pleasantly warm even outside thanks to the organic cotton fleece. Once put on, there's no need to change them – ideal for every day. The wide, comfortable waistband with adjustable elastic on our children's fleece pants ensures that the back is always well covered and the warm pants don't slip down even during active games, and they fit well without being uncomfortably tight. Even with a lot of activity, these winter pants fit securely and keep the little ones warm and cozy, whether indoors or outdoors. Simply pure coziness.
We know how active children are. That's why we've equipped our children's fleece pants with extra-large knee pads. The fabric was specially developed for sports and motorcycle use and can withstand up to 100,000 friction cycles . This means that the knees of these warm pants are optimally protected without restricting freedom of movement. Thanks to the 4-way stretch, the fabric remains flexible and adapts to every movement. The knee reinforcements are also water-repellent, so a fall on a wet playground is no problem – simply wipe them down and they're clean as new. In our experience, the knee pads will withstand even the wildest adventures – holes are a thing of the past.
As with all Babbily trousers, we focus on a flexible fit that grows with your child. The waistband and leg length are adjustable, ensuring these fleece pants will fit children well over several seasons. Our "grow-with-me" pants adapt to your child's growth, so they can be worn for longer.
We know every pair of pants needs pockets – for all the treasures of the day! That's why we've integrated side pockets for safely storing small treasures.
Although recycled polyester for fleece pants is often touted as a sustainable solution, we disagree. Washing polyester, whether new or recycled, releases microplastic particles that end up in our oceans—one of the main causes of microplastic pollution. Furthermore, polyester can't be recycled, meaning garments made from recycled plastic end up in landfills. And compared to natural materials like organic cotton, polyester isn't as breathable or skin-friendly. That's why we use natural, healthy, and chemical-free materials for our kids' fleece pants—because true sustainability starts at the roots.
Our children's fleece pants are made from 100% pure GOTS-certified organic cotton (Certified by KIWA BCS 26126). This means that strict ecological and social standards are adhered to during the production of the fabric. Furthermore, the long lifespan of our warm pants contributes to reducing textile waste and conserving resources. And: We manufacture in Europe, which guarantees short transport routes. We know our production partners personally and select them based on trustworthiness and fairness.
We listened to our customers' feedback and developed warm pants that combine all the essential elements for comfort and durability. The wide, adjustable waistband and extra-large knee reinforcements ensure that these children's fleece pants are comfortable and durable in every situation—no matter your child's body shape.
Babbily's children's fleece pants will be an indispensable companion throughout the winter – and beyond. Complement your child's winter wardrobe with a second pair of thermal trousers made of brushed sweatshirt fabric from Babbily, and your little hero will be ready for winter adventures.
We develop our GrowProof™ trousers with one simple goal: they shouldn't be too small or worn through at the knee while the rest is still fine.
Grows across 3–4 sizes
Waistband and leg length can be adjusted. So one size can accompany your child much longer than trousers with a fixed fit.
Knee patch tested to 100,000 rubs
The flexible knee patches are made of an abrasion-resistant 4-way stretch fabric and reached 100,000 rubs in the Martindale test.
GOTS-certified organic cotton
We use certified fabrics from our European suppliers. You will find the certification in the product details.
Made in Europe
Our trousers are produced in small batches in Europe, including in Slovakia.
European suppliers
We source fabrics and other materials from selected suppliers in Europe, including Germany, the Netherlands and Austria.
Small production businesses
We work with small family businesses and workshops that we choose for their workmanship, reliability and production quality.
Plastic-free packaging
Our orders are packed in paper-based packaging without plastic.
A grow-along fit and particularly abrasion-resistant knees can help a pair of trousers stay in use longer and be replaced less often because of growth or holes in the knees.
Our clothing is made in Austria, Slovakia and neighbouring European countries.
We work with small family businesses in Europe that we know personally and chose for their careful workmanship.
Manufacturer
Sunny Bunny e.U. (BABBILY) | Gymnasiumstraße 42 | 1180 Vienna, Austria | Email: info@babbily.eu
Product identification: you will find the model name and size in the product description and product selection.
Safety and usage information: please follow the care and usage instructions given on the product.
Martindale method
Right. Our fleece is 100% organic cotton and fluffy inside and out.
Cotton absorbs moisture and feels pleasant even when switching between
romping and sitting – some polyester fleece fabrics can quickly
feel damp or sticky. And: no microplastic fibres from the
main fabric. The fabric is GOTS-certified (Kiwa BCS 26126).
For children who get warm quickly anyway, the thermal trousers made of brushed sweat fabric are usually the more versatile choice: warm enough for outdoors, comfortable indoors and slimmer under mud or rain trousers.
The fleece trousers are our warmest and cosiest option – ideal for children who get cold quickly or love it extra soft and snug. They are a bit bulkier and therefore better for dry, cold days or under wider-cut, unlined rain trousers.
Of course. Dry sand sticks a little more easily to the fluffy surface than to smooth sweat fabric – usually a shake or brush is enough. For wet sand and mud, we recommend unlined rain or mud trousers on top.
You can pull the long leg cuffs over the shoe when needed. That way less cold air or snow gets between trousers and shoe. As your child grows, the cuffs are simply worn normally again.