Rated 4.8/5 by 10,000+ Customers
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Marcus and 10,000+ others purchased

ThermaKnee™ Hot & Cold Knee Sleeve

ThermaKnee™ Hot & Cold Knee Sleeve

Soothing hot or cold relief that wraps around your knee—and stays put.

Thickened ThermaCore™ gel — concentrates cold exactly where the knee hurts
Secure no-slip compression — stays put through rest and light movement
Flexible after freezing — stays soft, never stiff or crackly
Hot & cold therapy — freeze it or microwave it, one sleeve does both
Sized to fit — choose S, M, L or XL for a snug, even fit
Color
Size

If you are not 100% satisfied, contact us within 30 days for a full refund.

Secure checkout • Fast shipping • Ships in 1–2 business days
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ThermaKnee™ Hot & Cold Knee Sleeve

$59.99
$59.99 $90.00
Save 33% Sold out

Recovery, simplified

Knee Relief Shouldn’t Be a Balancing Act

A loose ice pack slides off the second you move. A bag of ice drips down your leg and turns the couch into a puddle. Ten minutes in, it's warm — and you're back at the freezer.

ThermaKnee™ was made for people who want real cold therapy without babysitting it. Freeze the sleeve, slide it on, and let the compression hold the cold exactly where it hurts.

Hands-free hot or cold therapy

Even cold contact all the way around the knee

No drips, no towels, no mess

Real Recovery. Real People. Real Relief.

See how ThermaKnee™ fits into post-workout, post-op, and everyday recovery.

Customer photo

"68 and I walk a few miles every morning to stay ahead of the arthritis. Used to sit down after and prop bags of ice on each knee while they slid all over the place. Now I put one on each, sit out back with a cold drink, and let them do the work. My knees haven't felt this good in years."

Rick P. — Verified buyer

Everyday movement

Long walks
Customer photo

"ACL surgery in my second year of college and icing my knee while trying to study was a nightmare. Balancing a pack, sitting twisted so it wouldn't slide off. This just stays put. I can actually sit comfortably, get my work done, and let it do its thing. Total game changer during recovery."

Christelle J. — Verified buyer

ACL recovery

Post-op
Customer photo

"My knees are always stiff before a workout. I heat my sleeves up and wear them on my way to the gym, so by the time I start lifting they actually feel loose instead of creaky. Didn't expect the heat side to be the feature I use most."

Alara M. — Verified buyer

Stiff knees

Workouts

Powered by ThermaCore™ Gel

A thickened gel core that holds temperature longer and stays flexible — freeze it or heat it.
1

Freeze or Heat

Freeze for cold therapy, or microwave in short bursts for soothing warmth.

2

Wear

Slide the sleeve on. Compression seats the gel core evenly around the knee.

3

Recover

15–20 minutes of steady contact — hands-free, no readjusting, no mess.

FlexPath diagram
FlexKnee athletic tape close-up
Recovery

For People Who Refuse Melting Ice Packs

Steady, hands-free cold and heat therapy that stays exactly where you put it — through rest, stretching, and light movement — without the drips, the towels, or the trips back to the freezer.
  • No sliding, no holding it in place
  • One sleeve for both hot and cold
  • Flexible straight out of the freezer
  • Reusable, session after session
Shop ThermaKnee™

One Sleeve. Multiple Moments.

Made for the situations where you actually need your knee to feel better.

After a run — Ice a sore knees & enjoy no slip recovery

Post-op days — cold for swelling, heat for stiffness

Long work days — relief the moment you sit back down
30 DAY

30-Day Satisfaction Guarantee

Try ThermaKnee™ at home. If you are not satisfied with your order, contact us within 30 days and we will make it right!

FlexKnee packaging

Frequently Asked Questions

FAQ

How long does it stay cold?

The thickened ThermaCore™ gel holds cold through a full 15–20 minute session, which is the recommended window for cold therapy. Use it, give your skin a break, and refreeze for the next round.

Will it stay in place while I move?

The compression fit is designed to stay put during rest and light movement without rolling or sliding. It's built for recovery sessions, not high-impact activity.

Is it safe for sensitive skin?

Place a thin towel or sock between the sleeve and your skin if it feels too cold. Keep sessions to 15–20 minutes with breaks — prolonged cold directly on skin isn't recommended.

Should I wear anything between the sleeve and my skin?

The sleeve can be worn directly against the skin when the temperature feels comfortable. If you have sensitive skin or the sleeve feels too hot or cold, place a thin layer of fabric between your skin and the sleeve.

Always test the temperature before use.

How do I heat it?

Allow the sleeve to return to room temperature and remove it from any storage bag.

Microwave it for 30 seconds, then continue heating in 10-second intervals until it reaches a comfortable temperature. Check the temperature carefully before wearing it.

Do not overheat the sleeve.

How do I prepare it for cold therapy?

Place ThermaKnee™ inside a protective plastic bag and freeze it for approximately two to three hours.

If it feels too cold, allow it to sit at room temperature briefly before wearing it.

What if I am between two sizes?

For a more secure compression fit, choose the smaller size. For a gentler or more relaxed fit, choose the larger size.

If swelling changes the size of your knee or thigh significantly, consider how the sleeve will fit during the time you expect to use it.

How do I clean the sleeve?

Wipe it gently with a damp cloth and allow it to air-dry completely.

Do not machine wash, tumble dry, iron or submerge the sleeve in water.

What if ThermaKnee™ is not right for me?

Your purchase is protected by our 30-day satisfaction guarantee. Contact our support team within 30 days of delivery, and we will guide you through the return process according to our return policy.

How do I get in contact?

You can message support by clicking the "Contact Us" section on our store.

Knee Therapy That Actually Stays Put

Reusable hot & cold relief with a secure compression fit and a flexible gel core. Sizes S–XL.

Get ThermaKnee™ Today
Cold
Heat

What Customers Notice First

Excellent

4.8

/ 5

based on 1 067 reviews

Finally something that stays put

I've iced my knee with bags of peas, gel packs, everything. They all slide off the second I move. The compression on ThermaKnee actually holds it against my kneecap the whole session. First one that's worked for me. I've iced my knee with bags of peas, gel packs, everything. They all slide off the second I move. The... I've iced my knee with bags of peas, gel packs, everything. They all slide off the second I move. The compression on ThermaKnee actually holds it against my kneecap the whole session. First one that's worked for me.

Jason M. — Verified Buyer

Great customer support

Ordered the 2 pack and only 1 showed up in the box. Sleeves themselves work great, but it was a little annoying. Reached out to the Vlemin support team and they were quick to sort it out. Had the third one shipped the same day. Can't say enough good things about them. Special thanks to Stephanie! You earned a customer for life. Ordered the 2 pack and only 1 showed up in the box. Sleeves themselves work great, but it was a... Ordered the 2 pack and only 1 showed up in the box. Sleeves themselves work great, but it was a little annoying. Reached out to the Vlemin support team and they were quick to sort it out. Had the third one shipped the same day. Can't say enough good things about them. Special thanks to Stephanie! You earned a customer for life.

Drew S. — Verified Buyer

No more soaked couch cushions

The mess was honestly the worst part of icing my knee. This is clean, reusable, and I can wear it around the house while it does its thing. Wish I'd found it years ago. The mess was honestly the worst part of icing my knee. This is clean, reusable, and I can wear it... The mess was honestly the worst part of icing my knee. This is clean, reusable, and I can wear it around the house while it does its thing. Wish I'd found it years ago.

Marcus T. — Verified Buyer

On my feet all shift, this is my reset

I'm a nurse and my knees are wrecked by the end of a 12-hour shift. I freeze it in the morning and throw it on the second I get home. Being hands-free means I can actually relax while it works. I'm a nurse and my knees are wrecked by the end of a 12-hour shift. I freeze it in the... I'm a nurse and my knees are wrecked by the end of a 12-hour shift. I freeze it in the morning and throw it on the second I get home. Being hands-free means I can actually relax while it works.

Denise R. — Verified Buyer

Good product, slow to arrive

No complaints about the sleeve itself. It does what it says and the heat function is nice on stiff mornings. Knocking a couple stars because shipping took longer than I expected. Support did email me tracking when I asked, though. No complaints about the sleeve itself. It does what it says and the heat function is nice on stiff mornings.... No complaints about the sleeve itself. It does what it says and the heat function is nice on stiff mornings. Knocking a couple stars because shipping took longer than I expected. Support did email me tracking when I asked, though.

Trevor B. — Verified Buyer

Solid for post-run recovery

I run 20+ miles a week and my knees let me know about it. Icing right after with this has made a real difference in how they feel the next morning. Would love a slightly longer sleeve option, but the fit is comfortable and it stays put. I run 20+ miles a week and my knees let me know about it. Icing right after with this has... I run 20+ miles a week and my knees let me know about it. Icing right after with this has made a real difference in how they feel the next morning. Would love a slightly longer sleeve option, but the fit is comfortable and it stays put.

Will J. — Verified Buyer

Bought a second for my other knee

Started with one and liked it enough that I ordered a second so I can do both knees or keep one in the freezer at all times. The 2 pack pricing made it easy. No regrets. Started with one and liked it enough that I ordered a second so I can do both knees or keep... Started with one and liked it enough that I ordered a second so I can do both knees or keep one in the freezer at all times. The 2 pack pricing made it easy. No regrets.

Linda A. — Verified Buyer

Cold lasts the whole 20 minutes

The thing I care about is whether it stays cold long enough to actually finish a session, and this does. I don't have to keep running back to the freezer halfway through. Does the job. The thing I care about is whether it stays cold long enough to actually finish a session, and this does.... The thing I care about is whether it stays cold long enough to actually finish a session, and this does. I don't have to keep running back to the freezer halfway through. Does the job.

Sidney K. — Verified Buyer

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