Fits in Any Shoe
Level of Support
Use Code “BLACKFRIDAY22” at checkout to get 20% off IFAST and XFAST Pairs. Sale runs 11.23-11.29
Meet The IFAST®
As the only dynamic ankle stabilizer, the IFAST is designed and built to precisely mimic your anatomy. Giving the support and performance you need to move confidently.
98% Max Vertical
With the IFAST you keep your performance. In fact, you’ll keep 98.3%* of your max vertical jump, thats 18% more of your vertical than traditional ankle braces.
Super Low Profile
Designed to fit inside virtually any shoe, the IFAST is incredibly low profile, coming in at only 3mm thick.
Built From Anatomy
The IFAST is composed of 3 main components, each designed to mimic your ankles’ anatomy. The upper and lower act as your bones, the sleeve acts like your skin, and the tension system works like the ligaments in your body.
Trusted By Athletes
"The IFAST gives me the chance and the ability to be able to make sure I’m being proactive with supporting my ankles and making sure that I’m taking that step in protecting my body." — Joel Berry II
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