A single IFAST viewed from the left.
A pair of IFAST viewed from the front left.
A single IFAST viewed from the bottom.
A pair of IFAST viewed from the back.

IFAST®

4.7 out of 5 stars. 29 user reviews.
$119 $99
(Pair)
4.5-7
6-8.5
7.5-9
9-10.5
9.5-11
11-12.5
11.5-13
13-14.5
13.5-15
15-16.5
15.5 Up
17 Up
Options are based on US shoe sizes.
Recommended in pairs
Heads up! Single packages are not eligible for our scary cheap TREAT discount. Grab a pair for major savings!

Highlights

Outline of a shoe with an IFAST inside.
Low Profile
Fits in Any Shoe
Outline of three customization sliders.
Customizable
Level of Support
Outline of an ankle being sprained.
Reduces Risk
of Injuries
Developed with the body in mind, the IFAST is the only dynamic ankle stabilizer. The IFAST moves the way the body moves and protects the way the body protects. Designed for movement, the IFAST fits easily inside your shoe or boot providing ankle protection without compromising performance.

Meet The IFAST®

Unparalleled Performance

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

Be More You

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

Easy Fit

Designed to fit inside virtually any shoe, the IFAST is incredibly low profile, coming in at only 3mm thick.

Built From Anatomy

Inspired By You

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

Tested Performance

"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

Reviews from Our Users

4.7 out of 5
Marvin Alexander Pinckney
10.27.2022

At first my son did not want to wear them. As a QB he thought it would impede his mobility. Once he put them on and ran a few drills he was hooked. Great product Thanks

Amy
10.26.2022

My Daughter sprained her ankle 3 times this year. She has been wearing this since her 3rd sprained ankle instead of the doctor issued brace and said its way more comfortable.

Rebekah
10.06.2022

we love these ankle braces, by far the best and we've used lots of different ones. Love how it fits down in soccer cleats.

amy k
09.27.2022

These are by far the best ankle brace my daughter has used. She has badly sprained both ankles and these give her the best stability.

Bryan Stubblefield
09.04.2022

Rather than waiting for rolled ankle to wear a brace, we went ahead and started with iFast. My 12 yr old plays catcher and is constantly putting full weight on the ankles. He won't play without them now. Doubleheaders no longer are an issue. Highly recommend iFast!

Currently showing 5 of 29 reviews.