Ideal for active users, the Sierra foot ensures a smoother gait without the energy loss typically associated with other shock absorbing systems. Its unique angle-top design increases the length of the carbon fibre spring, maximising energy return and flexibility. The split-keel provides excellent inversion-eversion, allowing amputees to walk with confidence on uneven terrain. View Catalogue Page Read CES FRE F02 Technical Manual Range Overview Spare Foot Shell Guide MPK Package PROTEOR Feet Wall Chart