Dynamic prosthetic foot Formula™
K3K4for walking

dynamic prosthetic foot
dynamic prosthetic foot
dynamic prosthetic foot
dynamic prosthetic foot
dynamic prosthetic foot
dynamic prosthetic foot
dynamic prosthetic foot
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Mechanical characteristics
Activity level
K3, K4
for walking
Patient type


Formula™ The Formula foot is the ideal balance of flexibility and power, creating a dynamic foot design intended for a wide range of users/patients. The long, lightweight carbon pylon provides critical energy return to the user through the posterior attachment, while the compact shape of the ankle allows for better cosmetic finishing without hindering foot performance while worn with a shoe. Everyday users to elite athletes will admire the active feel of the Formula, and practitioners will appreciate the diverse range of fitting options for their patients. Features & Benefits Posterior mount design provides ideal balance of flexibility and power Long, carbon-composite pylon delivers lightweight, dynamic response Full-split toe offers maximum multiaxial function Rocker toe supports easy and smooth roll-over Fully customizable—choose the pylon and separate heel spring best suited for your patient STF technology enhances durability Specifications Weight rating: 330 lbs. (150 kg) Foot size: 22 – 31 cm Functional levels: K3 – K4 Weight (27 cm foot): 24 oz. (675 g) Pylon height: 12 – 20 in. (30 – 51 cm) Build height: 3 in. (7.6 cm) Warranty 2 years from date of patient fitting The Formula has been designed and manufactured for specific patient weights. Failure to follow the weight guidelines and/or overload conditions caused by the patient, such as heavy lifting, high impact sports, or abusive activities, that would otherwise damage the natural limb, may void the warranty.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.