Women's | Court & Field

K1 Flux

Supportive Tight

$398.00 $398.00 Sale

Women's | Court & Field

K1 Flux

Supportive Tight

$398.00 $398.00 Sale
Colour Black
Size XS

The only base layer with adjustable medical-grade support that's proven to help you overcome injuriesminimize pain, and get back to activityThe K1 Flux is best for all-purpose use, keeping you cool in warm environments.

  • Medical-Grade Knee Support
  • Cooling Ventilated Fabric
  • Full Length

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90 feet of high-strength cables hidden in the fabric provide the same support as many medical-grade knee braces.

Two control dials in the waistband allow you to adjust the support in each leg on-the-fly.

  • Medical-Grade Knee Support
  • Adjustable Support Dials
  • Cooling Ventilated Fabric
  • Targeted Compression
  • Full length

All-Purpose Use

  • Everyday Activity
  • Court & Field
  • Golf

Medical Indications

  • Knee Pain & Instabilities (including ACL, MCL, LCL, and PCL)
  • Knee Strains and Sprains
  • Patellofemoral Pain Syndrome (PFPS)


Material Contents

  • 79% Nylon
  • 21% Lycra

Product Care

  • Wash in Provided Wash Bag
  • Wash on Gentle Below 40°C
  • Hang to Dry

Our products are nothing like anything you've ever seen or worn before. So before you step into your new pair of K1s, throw away everything you think you know about how a pair of athletic tights should look, feel and function. Learn more about what to expect during your first wear and consult the frequently asked questions on our sizing, fit and first wear page.

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60-Day Risk Free Trial

1-Year Warranty


The K1 Flux packs a lot of hidden technology and is so much more than a compression tight.

Flexible Support Cables

90ft of high-strength cables provide medical-grade knee bracing.

Adjustment Dials

Adjust the support in each leg for any level of instability or activity.

Flexible Support Cables

90ft of high-strength cables provide medical-grade knee bracing.

Adjustment Dials

Adjust the support in each leg for any level of instability or activity.

Targeted Compression

Higher compression at the knee supports faster exercise recovery.

 Cooling Ventilated Fabric

Comfortable, breathable fabric with knit ventilation.

Inspiring Confidence

Get active & stay active with support that helps you overcome injuries, minimize pain, and gives you the confidence to keep going.
Read the findings from our customer survey here.


Reported Greater Knee Support


Reported Less Knee Pain


Reported Support In Their Hips & Back

Get Back To Activity

"I was forced to give up squash because of a knee injury, but now here I am back at it. I have three pairs, my squash pair, my tennis pair and my skiing pair!"



"These are truly an innovation that has been long awaited! a Total game changer. I’ve had two ACL reconstructions on one knee and additional surgery on the other knee. Skiing on hardpack has become more and more problematic as I am severely aggravated within hours. Two days of wearing Stoko and I had no knee pain it was like a miracle."


Product Reviews

Still Have Questions?

Stoko accepts returns & exchanges within 60 days of the purchase date. 

We encourage you to put your Supportive Apparel to the test before deciding to return. Move in them, get sweaty, and give them all you got. There is a short break-in period with your Supportive Tights. This means it will take a bit of time before your tights begin to regulate and feel comfortable on your body. They can be a total pain at first and challenging to get used to, Supportive Apparel is very different than any other tights or braces you’ve tried. 

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Stoko offers shipping within North America, please note that order processing may take an additional 1-2 business days from the stated shipping times below:

  • Standard Shipping 6-10 Business Days
  • Express Shipping 2-5 Business Days 

International ShippingAt this time, we cannot ship or sell Stoko products outside of North America. Please feel free to sign up for our newsletter to keep up-to-date as we continue to grow.

More information Here

Our products are registered as Class 1 Medical Devices through Health Canada and the FDA, which means that all our products are eligible for reimbursement through Health Spending Accounts (HSAs) and Flex Benefit Plans by all Canadian insurers, as well as some carriers in the U.S. This allows many of our customers to get their K1s free of charge or receive partial reimbursement.

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All Stoko products provide the same medical-grade bracing support, leveraging our Stoko Support System technology. It is really up to your personal preference what style would suit you the best!

All-Purpose: K1 Flux is engineered to deliver support in a variety of activities and is our most recommended product for all-around use. From everyday activity to court sports to golf, the K1 Flux can do it all while also keeping you cool with knitted ventilation.

Ski & Snow: K1 Summit is engineered to deliver support and warmth. It was designed for snow sports, such as skiing, snowboarding, and cross-country skiing.

Run & Hike: K1 Tempo is engineered to deliver support and keep you cool in warm environments, such as: running, hiking, and training.    

Similar to other traditional/medical grade knee braces, the Supportive Tight provides support and stability to the body in compromised knee positions; however, the Supportive Tight achieves these outcomes through different means. The Supportive Tight relies on tension throughout the Stoko Support System to generate support, which is made up of cables that are integrated into the tights. The result is support that moves with your body and doesn’t compromise on comfort, aesthetics, or support.

Learn More Here

You can reach our Support Team at hello@stoko.com

Stoko Support Center