The Fluk adjustable knee strap

The Best knee strap on the market to get rid of your annoying runner's knee pain

Knee pain is no fun. Especially for us runners. Our fun is other's torture. And sometimes your knees will start complaining before you do (just like the rest of them...). Alas, there is a solution & it doesn't require you to throw in the towel before setting a new distance PR. We were tired of those one size fits all, clunky knee straps or sleeves that still left a lot to be desired. That's why we worked closely with medical professionals over the past 2 decades to perfect our knee strap & innovative moldable insert. And now we want to skip the long, drawn out doctor patient questionairre and share our innovative pain-releiving knee straps directly with you.

Your knees deserve custom-tailored support from medical-grade premium materials. Unlike other mediocre straps (the kind that leads to sweaty rashes after a long run), The Fluk takes an innovative approach to alleviating the pain of common knee injuries such as patella knee syndrome (aka - runner’s knee). Unlike a lot of the other knee straps on the market that would rather source from China, cut costs and skimp on quality, our adjustable ѕtrарѕ аrе made right here in the 🇺🇸USA. Helps us keep a close eye the finner details & ensure what arrives at your doorstep is nothing short of pain-relieving awesomeness.

Can be worn below & above the knee for IT Band relief.

What are you waiting for? I think your knees want you to hit that ADD TO CART button below. They'll thank you after your next run. If your knees don't like them no problem, we offer easy returns.


what makes our knee strap different?

  • OVER 2 DECADES IN THE MAKING Founded in 1989, we started by selling our braces ONLY direct to medical professionals. Since then we've learned alot and have used their expert feedback to create a truly innovative strap. No we're not the cheapest on the market, but the "cheap straps" don't even come close to this medical-grade tested quality.
  • 🇺🇸 USA PREMIUM MATERIALS  Our straps are designed to last and go the extra miles with you on your next long run or marathon.
  • MOLDABLE INSERT Most knee pain is not the exact same all around your knee. So shouldn't you be able to adjust your strap support to accomdate this? Watch this video to see what we mean. In his own words, "this is the genius part".
  • LOW PROFILE NEOPORENE Who likes sweaty knees? We surely don't. So we designed this strap of a breathable material that allows proper air circulation and prevent heats build up.
  • WORN BY PROFESSIONAL ATHLETES The Fluk knee strap is worn by both professional & amateur athletes across many different sports like running, basketball & high jumping.
  • MONEY BACK GUARANTEE If you're not happy with your purchase, just send it back to use and we'll send you full refund.

don't let knee pain hold you back from running with your loved ones (TWO & FOUR-LEGGED)

When you're hit with an injurу likе Runnеr'ѕ Knее, it саn really рut you dоwn. As runnеrѕ, wе аrе thе rаrе breed that асtuаllу еnjоу whаt others соnѕidеr рuniѕhmеnt. But severe knee pain can really put уоu bасk in thе bаѕеmеnt or leave you to become a couch potato with everyone еlѕе. Rather than thrоw уоur workout goals & precious trail time with your four-legged friend оut thе windоw, trу running with our Fluk knee straps nеxt timе.

what our customers have to say about the fluk

Cole lambert


I have been wearing this strap daily for the last month, and it has helped me feel SO much better.

I developed a 'Blister' on the cartilage under my patella (playing baseball). It stays put very well. I sweat a lot and rarely have to adjust it. It is ieasy to clean as well. Overall, I am very pleased with this strap.

David k


A lot Easier to support around just your tendon without too much extra around your whole knee

This is a good knee brace for patellar tendinitis aka jumpers knee- when you have pain to the bottom of your knee cap made worse by jumping and frequently associated with basketball and volleyball. The strap velcros on to itself first, and then pressure is applied to a firm bar via the last part of the strap. The bar velcros on so you can adjust where it is positioned on the strap. A lot easier to put pressure on your tendon without too much of a tourniquet effect around your whole knee. Much better support and stronger Velcro than mueller type straps. Good quality.

Errol M


skinny brace with a big punch!!

I was extremely skeptical at first but the brace worked very well!! Really like the way it can be targeted specially to the area that’s impacting your mobility and not covering your entire knee. I ran my first sub 9 minute pace 5K practice run this Sunday for first time in 2 months without the usual after run effects from a sore knee and will see how it goes this Sunday when I run twice the distance at the local park.


REady to give your knees custom-tailored support? press the add to cart button below.

2-Pack The Fluk Knee Strap