Spring into Action

The first to incorporate Integrated Spring Technology (iST®), the Soleus provides natural movement with a progressive, 3-staged response and superior range of motion. The foot integrates Intelliweave composite springs through a tough, flexible plantar belt that responds to varying impacts. The unique, scaled design also provides 10 mm of vertical compliance for unbeatable comfort. The Soleus accommodates a moderate activity lifestyle up to the highest impact Paralympic athlete.

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  • Soleus iST


    The art of using multiple springs in parallel or in a series to produce a proportional loading response. We precisely engineer our springs with different dynamics to load and unload at the right time, producing seamless transitions.



*26cm, with Enviroshell and CPI sock.
** The listing of codes with these products should not be construed as a guarantee for coverage or payment. Ultimate responsibility for the coding of services/products rests with the individual practitioner.

Impact Level Impact Level Moderate to High
Mounting Mounting Endo (4-hole)
Weight Limit (lbs) Weight Limit (lbs) 220 (21-24 cm)
250 (25-26 cm)
275 (27-30 cm)
Size Range Size Range 21-30 cm
Clearance Clearance 16.3-19.3 cm
Foot Weight* Foot Weight* 667 g (26 cm)
Waranty Waranty 3 years

Cosmetic Options

Color Options




Jet Black
Shell Type:  Standard
Shell Width:  Narrow & Wide
Includes:  Foot, foot shell, cosmetic attachment plate and CPI sock.