Kintex Knee Sleeve
Kintex Knee Sleeve
Designed to support young athletes through Osgood-Schlatter disease and growing knee pain.
Targeted Osgood-Schlatter Relief
Patella Stabilisation
Patella Stabilisation
All-Day Breathable Comfort
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Estimated dispatch on Friday 19 June
Not the right size ? Free exchange
Kintex Knee Sleeve
My son was in tears after every football match because of his Osgood-Schlatter. After 2 weeks with Kintex, he's back playing pain-free and smiling again. A lifesaver!
Will this help my child with Osgood-Schlatter disease?
Will this help my child with Osgood-Schlatter disease?
Yes — the Kintex Knee Sleeve is specifically designed to support young athletes dealing with Osgood-Schlatter. Its targeted compression eases pressure on the painful zone just below the kneecap, while the patella reinforcement stabilises the knee during running, jumping and sudden direction changes.
Many UK parents tell us their child can finally finish training sessions and matches comfortably. Whilst it's not a medical cure, it's a non-invasive way to support your young athlete through their growth years and keep them in the game.
Will it fit comfortably under football boots, rugby kit, or school PE uniform?
Will it fit comfortably under football boots, rugby kit, or school PE uniform?
Absolutely. The Kintex Knee Sleeve features a slim, low-profile design that fits discreetly under any sports kit — football shorts, rugby kit, basketball shorts or school PE uniform.
The breathable mesh panels prevent overheating during intense play, and the secure Velcro straps keep the sleeve firmly in place so your child can focus on the game, not on adjusting their gear.
It's lightweight enough to wear all day at school and supportive enough for weekend matches.
Why is this better than a £10 sleeve from Amazon?
Why is this better than a £10 sleeve from Amazon?
Generic Amazon sleeves are usually one-size adult products with thin fabric and no targeted support — they slip, bunch up, and offer little real relief for Osgood-Schlatter.
The Kintex Knee Sleeve is purpose-built for young athletes aged 9-15, with a dedicated patella reinforcement zone, dual adjustable straps for a secure fit on growing knees, and premium breathable compression fabric that lasts through season after season.
Plus, every Kintex order includes free UK delivery, a free Recovery Ball, a free Exercise eBook (£14.99 value), and our 30-day satisfaction guarantee — risk-free for parents.
Shipping
Shipping
- Free UK delivery on all orders
- Dispatch within 24‑48 hours (working days)
- Estimated delivery: 7‑10 working days across mainland UK
- Tracked shipping — you'll receive a tracking link by email as soon as your order ships
Returns & Refunds
Returns & Refunds
Try Kintex 100% risk-free for 30 days.
We know choosing the right size for a growing child can feel tricky — that's why every Kintex Youth Heel Support Sleeve is backed by our 30-Day Fit & Comfort Guarantee.
If the size doesn't feel right, if your child doesn't love it, or if you simply change your mind — just send it back within 30 days of delivery for a full refund. No questions asked, no awkward forms, no hidden fees.
What's included in your guarantee:
✅ 30-day money-back guarantee — a full month to try it during training, matches, and everyday wear ✅ Free size exchanges — wrong size? We'll swap it for the right one, hassle-free ✅ No restocking fees, ever — the price you paid is the price you get back ✅ No hidden conditions — even worn sleeves are accepted (we want your child to actually test it) ✅ Easy returns process — just email us at support@getkintex.com and our UK support team will guide you step-by-step ✅ Fast refunds — processed within 5 working days of receiving your return, straight back to your original payment method
💙 Our promise to UK parents: We stand behind every sleeve we make. If Kintex doesn't help your young athlete feel more comfortable on the pitch, court, or track — we'll make it right. That's a guarantee.
Still unsure about sizing? Check our Size Guide or message us before ordering — we'll help you pick the perfect fit for your child's foot length and age.
Fabric & Care
Fabric & Care
Fabric Composition:
- 85% Nylon
- 15% Spandex (Elastane)
- Breathable mesh panels
- Latex-free, skin-friendly construction
Why this matters:
The Nylon and Spandex blend was selected for its lightweight durability, four-way stretch, and breathability — ensuring the sleeve stays comfortable through long matches and training sessions without losing its targeted compression.
Care Instructions:
- Machine wash or hand wash in cold water (30°C max)
- Use a mild detergent
- Tumble dry on low heat or air dry
- Do not bleach
- Do not iron
- Do not use fabric softeners
- Do not dry clean
Pro tip: For best results and longer product life, wash the sleeve after every 2–3 uses. Air drying is recommended to preserve elasticity.
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
Recommended by sports experts
Free delivery in the UK
'The best decision we made for our young athlete'
My son is back on the pitch — and smiling again
My boy was in tears every evening because of his Osgood-Schlatter. Two weeks with Kintex and he's finished a full training session pain-free. I cried when he came off the pitch smiling. Truly a lifesaver.
£300 wasted before finding this
We tried gel cups, new boots, physio — nothing worked for Harry's Sever's disease. After 8 months of relapses, Kintex finally let him train without limping home. I just wish we'd found it sooner.
He talks about football at dinner again
Osgood-Schlatter had taken my son's confidence. He'd stopped mentioning football altogether. Two weeks with Kintex and he's chatting about his next match like before. Worth every penny.
Finally, something that actually fits a child's foot
Every other sleeve I bought was an adult one cut down for kids. Kintex is the first product that actually fits my 11-year-old's foot inside his football boots. His heel pain is gone after 3 weeks.
No more crying after matches
Watching my daughter limp off the pitch every weekend was breaking my heart. The knee sleeve gave her support exactly where Osgood-Schlatter hurts. She finished her tournament last Sunday — first time in months.
The only thing that fits inside football boots
My son refused to wear any of the gel cups because they slid around inside his boot. Kintex stays put, he barely notices it, and his heel pain is finally under control. I genuinely don't know what we'd do without it.
Our physio recommended it — it works
Our physio mentioned Kintex was a good non-invasive option for Osgood-Schlatter. We were sceptical at first but my son hasn't missed a rugby session in 6 weeks. Comfortable enough for school PE too.
From sitting out matches to scoring goals
Sever's disease had Jack asking to skip warm-ups for 4 months. Three weeks into wearing Kintex and he scored his first goal of the season last Saturday. The look on his face — priceless.
My son is back on the pitch — and smiling again
My boy was in tears every evening because of his Osgood-Schlatter. Two weeks with Kintex and he's finished a full training session pain-free. I cried when he came off the pitch smiling. Truly a lifesaver.
£300 wasted before finding this
We tried gel cups, new boots, physio — nothing worked for Harry's Sever's disease. After 8 months of relapses, Kintex finally let him train without limping home. I just wish we'd found it sooner.
He talks about football at dinner again
Osgood-Schlatter had taken my son's confidence. He'd stopped mentioning football altogether. Two weeks with Kintex and he's chatting about his next match like before. Worth every penny.
Finally, something that actually fits a child's foot
Every other sleeve I bought was an adult one cut down for kids. Kintex is the first product that actually fits my 11-year-old's foot inside his football boots. His heel pain is gone after 3 weeks.
No more crying after matches
Watching my daughter limp off the pitch every weekend was breaking my heart. The knee sleeve gave her support exactly where Osgood-Schlatter hurts. She finished her tournament last Sunday — first time in months.
The only thing that fits inside football boots
My son refused to wear any of the gel cups because they slid around inside his boot. Kintex stays put, he barely notices it, and his heel pain is finally under control. I genuinely don't know what we'd do without it.
Our physio recommended it — it works
Our physio mentioned Kintex was a good non-invasive option for Osgood-Schlatter. We were sceptical at first but my son hasn't missed a rugby session in 6 weeks. Comfortable enough for school PE too.
From sitting out matches to scoring goals
Sever's disease had Jack asking to skip warm-ups for 4 months. Three weeks into wearing Kintex and he scored his first goal of the season last Saturday. The look on his face — priceless.
The Pain That Lies to You
Your child finishes the match smiling. A few hours later, they can barely climb the stairs. It's the classic pattern of Osgood-Schlatter: during sport, adrenaline masks the strain on the tibial tubercle — the soft growth plate just below the kneecap where the patellar tendon pulls with every sprint, jump, and kick. The micro-damage is happening in real time; your child simply can't feel it yet.
That's why rest alone never breaks the cycle. A few days off settle the inflammation, but the moment training resumes, the tendon pulls on the same fragile zone — and the pain returns. Kintex was engineered to reduce that traction during activity, so your child keeps playing while the growth plate finally gets the break it needs to recover.
Support That Lasts the Whole Season, Not Just the Bad Days
Osgood-Schlatter eventually fades as growth comes to an end. But between the first symptoms and that natural recovery, months sometimes years can pass. Months where your child risks missing key matches, losing their starting spot, and more importantly, losing the love for the game itself.
Kintex was built for exactly this in-between period. The sleeve targets the patellar tendon directly during activity, without the rigidity of a medical brace or the vagueness of a simple elastic support. It's active support, engineered for young athletes who refuse to pause their passion because of a growing pain.
The goal isn't to stop them playing it's to let them keep running, jumping and growing in the sport they love.
Trusted by sports recovery specialists
As a sports recovery specialist, I work with young athletes every week who are dealing with knee discomfort from Osgood-Schlatter, growing pains, intensive training, or overuse. The biggest issue I see? Most parents are still using generic adult-sized knee supports that simply don't fit a developing knee and that's where Kintex stands out."
What I appreciate about the Kintex Knee Sleeve is its targeted patella support design the reinforced kneecap zone and dual-strap configuration mirror the patellar taping techniques we use in clinical settings to stabilise the knee and ease pressure on the painful Osgood-Schlatter zone during activity. Combined with its slim profile and breathable construction, it's something I'm comfortable recommending to active families looking for a non-invasive way to support their child during sport.
I always remind parents that nothing replaces proper rest, stretching, and listening to your child's body. But for the everyday moments training sessions, school PE, weekend matches Kintex is a smart, supportive option that fits into a young athlete's routine without getting in the way.
-Sarah Whitmore Sports Recovery SpecialistUnited Kingdom
Loved by UK families across every sport.
Free eBook with Every Order — Worth £14.90
Every Kintex order comes with our exclusive digital guide,The Pain-Free Performance Playbook— written for UK parents of young athletes aged 8-13. Inside, you'll discover simple warm-up routines, recovery techniques, and nutrition tips to help your child stay strong, confident, and injury-free. Delivered instantly to your inbox after checkout, no extra cost, no strings attached.
Got questions ? We've got answers.
How do I know if Kintex is the right size for my child?
How do I know if Kintex is the right size for my child?
Choosing the right size is simple: measure the circumference of your child's knee, just below the kneecap, with a soft tape measure (in cm). Match it to our Size Guide (S / M / L / XL) — each size also includes a suggested age range for quick reference.
Still unsure between two sizes? We recommend going one size up — children grow fast, and the adjustable dual-strap fixation guarantees a snug, secure fit even with a slightly larger sleeve.
Not the right size? Free exchange, no hassle.
Can my child wear Kintex during football, rugby or any sport?
Can my child wear Kintex during football, rugby or any sport?
Yes — Kintex is designed to be worn discreetly under any sports kit: football shorts, rugby shorts, tracksuit bottoms, school PE kit, or training leggings.
The slim 2mm compression fabric means there's no bulk, no rubbing against the boots, and no shifting during sprints, tackles, jumps or quick changes of direction. Your child can focus on the game — not on readjusting their sleeve every five minutes.
At what age can my child start wearing Kintex?
At what age can my child start wearing Kintex?
Kintex is specifically engineered for young athletes aged 8 to 14 — the exact age range when Osgood-Schlatter and growth-related knee pain are most common.
Our 4 sizes (S, M, L, XL) cover knee circumferences from approximately 26cm to 38cm. Check our Size Guide for the exact match to your child's measurements.
How long should my child wear the sleeve each day?
How long should my child wear the sleeve each day?
We recommend wearing Kintex during sports activities, training sessions and matches — typically 1 to 4 hours at a time. It can also be worn during the day if your child experiences discomfort after intense activity, for example walking home from school or climbing stairs.
It's best to remove the sleeve at night to let the skin breathe. For best results, combine daily use with proper warm-ups, stretching, and rest days as advised by your child's coach or physiotherapist.
Is the fabric safe for sensitive skin?
Is the fabric safe for sensitive skin?
Yes. Kintex is made from a breathable blend of 85% Nylon and 15% Spandex, specifically chosen to be:
– Hypoallergenic and latex-free – Moisture-wicking (keeps the skin dry during sport) – Odour-resistant – Soft against the skin — no rubbing, no irritation, even after hours of activity
We recommend washing the sleeve before first use, and after every 2–3 wears.
How do I wash and care for the sleeve?
How do I wash and care for the sleeve?
Caring for your Kintex sleeve is easy:
🧺 Hand wash in cold water with mild soap (recommended) 🚫 Do not machine wash on hot cycles, tumble dry, bleach, or iron 🌬️Air dry flat, away from direct sunlight or radiators ♻️ With proper care, your sleeve will keep its compression and elasticity for 6-12 months of regular use
What if Kintex doesn't work for my child?
What if Kintex doesn't work for my child?
We've got you covered with our 30-Day Fit & Comfort Guarantee. If the sleeve doesn't fit, your child doesn't love it, or it simply doesn't meet your expectations — send it back within 30 days for a full refund. No questions asked, no hidden fees.
We're confident Kintex will help your young athlete feel more comfortable on the pitch — but if not, we'll make it right.
📩 Need help? Email our UK support team at support@getkintex.com — we usually reply within a few hours.
How long does delivery take?
How long does delivery take?
We offer free tracked delivery across the UK, with most orders dispatched within 24‑48 hours of being placed. You can expect to receive your Kintex within 7‑10 working days. Once your order ships, you'll receive a tracking link by email so you can follow it all the way to your door.