Detail: blaue Leggings mit Kniebesatz beim Klettern

Sport Leggings Organic Cotton

80+ / cosmic blue
€44,99
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Detail: blaue Leggings mit Kniebesatz beim Klettern
  • Detail: blaue Leggings mit Kniebesatz beim Klettern
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Sport Leggings Organic Cotton

Sport Leggings Organic Cotton

One favourite pair for 3–4 sizes

✓ Robust knees with Cordura®

✓ Grows across 3–4 sizes

✓ Adjustable waistband & length

✓ Easy care
€44,99
Taxes included. Shipping calculated at checkout.
Size
Colorcosmic blue

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.

Green Product Awards 2025 finalist
Green Product Awards 2025 finalist
Made for Mums 2024 Gold
Made for Mums 2024 Gold
Made in Europe
Made in Europe
Certified organic cotton
Certified organic cotton

Easy to pull on – your child can dress independently

Knee patch with 100,000 rubs (Martindale test) 

Breathable for indoor play - soft organic cotton 

Try on at home at your leisure - 30-day returns

Features at a glance

Looking for high-quality, comfortable sport leggings that won´t slide down and can keep up with your little one´s sports adventures? Look no further than Babbily sport leggings made from organic cotton with reinforced knees land high adjustable waist – super comfy and breathable.

  • Ready for shipment in 1-4 days
  • Designed for sport and movement
  • Durable knee patches
  • Adjustable length
  • Adjustable high waist with button elastic
  • Wide step with gusset
  • Organic cotton – soft and breathable
  • Designed in Vienna, produced in Europe
  • Sizes 80+ and 92+ have a nappy allowance
  • No plastic packaging

Please check sizing guide for the right fit.

What are the leggings made of?

  • Main Fabric: 95% Organic Cotton, 5% Elastane (GOTS certified by BCS KIWA 26126).
  • Quality: Lightweight 200gsm Jersey.
  • Knee Reinforcement: High-tech 4-way stretch with Cordura®. Extremely abrasion-resistant, water-repellent, and dirt-resistant.
  • Why 100,000 rub cycles? For context, standard fabrics often show wear after just 5,000 cycles. Our knee zones are designed to last through lots of adventure.
  • Details: High-quality Corozo buttons – 100% natural and biodegradable. 

Care for Longevity

  • Washing: Wash at 30°C inside out. This protects the organic fibres and the Cordura surface.
  • Drying: Avoid the tumble dryer. Air drying maintains the 4-way stretch elasticity and the garment’s shape.
  • Cleaning: For light marks on the knees, a quick wipe with a damp cloth is often all that is needed.

Do the knees really last longer?

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.
Vergleich: Kniebesatz der GrowProof Leggings mit 100.000 Scheuertouren im Martindale-Test

How do the leggings grow with the child?

In three places:

  • Waistband: You can adjust the waistband to be tighter or looser using the buttonhole elastic. Once set, your child can pull the leggings on and off by themselves.
  • Length: The long leg cuffs are folded up at the beginning and rolled down bit by bit as your child grows.
  • Width: At the beginning, the leggings fit a bit looser, almost like trousers on slimmer children. As your child grows, they fit more closely to the body without feeling constrictive.

The knee patch is intentionally cut large so that it still covers the knee even after a growth spurt. This allows the leggings to accompany your child through 3–4 clothing sizes.

How do Babbily trousers fit?

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 Größentabelle: Babbily-Größe, Körpergröße und mitwachsender Bereich

How long do the trousers fit?

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.

Shipping + Returns

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.

Product description

Introducing our Sport Leggings Organic Cotton for boys and girls, the perfect choice for sporty kids who need comfortable, breathable and durable sportswear. Thanks to the high waist and wide step our sport kids´ leggings are super comfortable for all day activities – from sport, to the playground, to school.

We’ve designed the Babbily sport leggings to last

Our sport kids leggings have on average 4x longer wearing time compared to standard leggings. This is thanks to a clever combination of grow-along features and reinforced knees.

The high adjustable waistband gives extra coverage for the back, ensuring maximum comfort and preventing any unwanted gaps. Combination of adjustable waistband and length makes it easy to adjust leggings to variety of shapes children come in. Thanks to added adjustable elastic band our sport kids leggings with high waist don’t slide down.

The wide step gives freedom of movement and extra comfort during active play or quiet breaks.

Made from soft organic cotton jersey, Babbily Sport Leggings Organic Cotton are soft and breathable, and are great to wear in all seasons. The reinforced knees are made from stretchy hi-tech sports fabric that provides durability and protection during physical activities.

Babbily sport kids leggings are a sustainable choice

From the eco-friendly buttons to the lack of plastic packaging, we design all our leggings with the environment in mind. And because one pair of Babbily sport kids’ leggings can replace up to three to four pairs of traditional leggings, you can reduce textile waste and save resources.

Whether your child is doing sports, playing in the park, going to school or just chilling at home, these Sport Leggings Organic Cotton will provide the support and comfort they need. So, get ready to invest in a pair of leggings that your child will love to wear and you will love to see them in!

For even more everyday favourites, take a look at our classic denim-look collection or our printed leggings for nursery.

Our approach to longer-lasting children's clothing

We develop our GrowProof™ leggings 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.

Wearable for longer – through construction, not promises

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.

Where is Babbily children's clothing made?

Our clothing is made in Austria, Slovakia and neighbouring European countries.

We work with small family businesses that deliver high-quality craftsmanship and 
produce under EU labour law.

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.

Organic leggings knee vs. Babbily knee reinforcement

Martindale tested

Durchgescheuertes Loch am Knie einer dunkelblauen Kinderleggings
Standard jersey – no knee reinforcement
Test mit Schleifpapier am Kniebesatz einer Babbily Kinderhose
Babbily Reinforced Knees - 100,000 Martindale Abrasion Cycles

What does 100,000 rubs mean?

It is an abrasion test: a machine rubs the fabric until it wears through. Our knee patch reached 100,000 rubs (the knee patch was tested, not the whole garment). 

 Read more in the material test on our blog

Good to know

Which leggings are best for nursery?

Soft ones that are easy to put on by themselves and can take a lot at the knee. The GrowProof™ organic leggings have a wide, adjustable waistband without buttons or zip, lots of freedom of movement and reinforced knees – for morning circle, climbing frame and everything in between. The soft jersey made of
certified organic cotton is breathable and gentle on the skin, even when sitting on the floor for a long time.

Can my child put the leggings on and take them off alone?

Yes, that is exactly what they are designed for. There are no buttons, zips or cords on the outside: just slip in, pull up, done. You set the adjustable elastic in the waistband once – after that, your child doesn't need anyone's help for toilet trips at nursery.

The waistband always pinches on other leggings. Is this one different?

The comfort waistband is wide and soft and sits without digging in. Because the width can be adjusted with the elastic, the leggings don't slip on slim children – and don't pinch on sturdier ones. The turn-up
leg cuffs also adjust the length.

What if my child plays on damp ground?

The knee patch reached around 100,000 rubs in the Martindale test, is water-repellent and easy to wipe clean. For dry ground, sand and grass, the leggings are perfectly fine outdoors. In rain and real mud, simply put rain trousers over them. The knee patch is water-repellent, the leggings are not waterproof. This way the leggings stay the easy everyday trousers – indoors and outdoors, without constant changing.

Are the patterned leggings as robust as the plain ones?

Yes. Patterned and plain leggings are made from the same light summer jersey and have the same flexible 4-way stretch knee reinforcement against wear.

If your child plays outside a lot, we recommend our denim-look leggings: the slightly thicker summer sweat is even better suited to the playground and everyday outdoor life.

Are denim-look leggings comfortable enough for the whole day?

Yes. The fabric looks like denim but feels soft and stretchy. The high, adjustable waistband also makes them comfortable to wear.

Which season are the denim-look leggings suited to?

The slightly firmer summer sweat is particularly well suited to spring, autumn and mild winter days.

What is the difference between denim-look leggings and normal leggings?

Our denim-look leggings are a little thicker and more robust than the light jersey leggings. Both have the same grow-along cut and reinforced knees.

Also perfect for romping...
  • 5 stars: 2 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Anna

Es ist schon meine zweite Bestellung, bin sehr zufrieden. Super bequeme Hose, gute Qualität und schneller Versand. Vielen Dank!

Anna review photo
M
MarinaG

Ausgezeichnete Qualität! Das ist bereits unsere zweite Leggings und sicher nicht die letzte. Perfekt für den Alltag und vor allem für den Kindergarten, wo die Kids immer auf den Knien spielen und alles erforschen! 100 mal gewaschen, Farbe und alle Nähte (vor allem die Patches auf den Knien) halten bombenfest. Meine Tochter ist 111cm groß, habe Größe kleiner bestellt (104) und es genau richtig! Kann noch umgekrempelt werden, und ist somit noch sicher für längere Zeit. Tolles Produkt!!!

MarinaG review photo