Skip navigation

Flex-Foot Cheetah®

Flex-Foot Cheetah®


A true champion – The only prosthetic foot that has ever run the Olympics.

The Cheetah was the first sport foot of it’s kind when first launched in 1996. Ever since the Cheetah has been the foot of choice for athletes around the globe.

Cheetah is recommended for longer distance running for TT users that do not have clearance for Flex-Run with Nike Sole. For sprinting the new Team Össur favorites, Cheetah Xtreme and Cheetah Xtend are recommended.

Impact Levels

Impact LevelExample


Activities involving running, track and field, sprinting, and long-distance running.

Example: Track and field sports.



Active Tibial Progression

Proportional Response

More Sport Solutions

April Holmes

Some people want to run before they can walk – and who can blame them! Össur understands what it takes to move freely and most fast, hence its range of high performance prosthetic feet for people who want to achieve.

Experience the comfort, power and agility that make up the building blocks of high energy activity. From chasing world records to jogging with the dog, Össur’s sports feet are renowned for keeping people moving.

Superior biomechanical expertise, combined with invaluable feedback from top athletes and active people, has helped guide the following designs. Watch them in action when Team Össur get on the field, and prepare to be inspired.

Flex-Foot Cheetah®

It has broken all manner of records and, like its namesake, the Cheetah runs like the wind. An agile sprinting foot, it is used mainly by people with below-knee amputations, but is also suitable for some above- knee users. The design captures the running characteristics of the Cheetah, the world’s fastest land animal. It replicates the big cat’s hind leg, whose foot extends and reaches out to paw at the ground while the large thigh muscles pull the body forward.

Comfort, power and agility

If you think Össur’s sports feet could help you achieve your sporting ambitions, discuss the different options with your prosthetist.






Flex-Foot Cheetah Specifications

Flex-Foot Cheetah® Product Information
Warranty Information
Amputation Level:



Impact Level: Extreme
Build Height: 411mm (16 3/8")
Categories: 1-9
Sizes: One Size Per Category
Weight Of Foot: 512g (18.1oz)
Adapter Options: Lamination Connector
Flex Foot Characteristics:

active tibial progression

proportional response

Flex-Foot Cheetah® Features

Active Tibial Progression

Active Tibial Progression

Vertical forces generated at heel contact are stored and translated into a linear motion described as Active Tibial Progression. This action reduces the need to actively push the body forward using the contralateral foot and also equalizes stride length.

Benefit: More natural gait and reduced walking effort.

Proportional Response

Proportional Response

The layering of carbon fiber, optimized through extensive computer analysis and mechanical testing, ensures that the deflection of the carbon fiber heel and forefoot components are proportional to the user’s weight and impact level.

Benefit: Customized construction optimizes walking efficiency thus reducing fatigue for the user.