The BioStep™ CL features NRG™ Technology providing a firm connection to the ground. It is suggested for urban and aggressive walkers who would like a strong, durable, and comfortable dynamic response.MultilayerDynamic calf and shinRange of motion: 26°Axial rotation: 9°Light weight and low maintenance

The BioStep™ EVO features NRG™ Technology for extra shock absorption and increased safety on all terrains, providing a softer connection to the ground. It is suggested for demanding dynamic used looking for increase shock absorption.MultilayerDynamic calf and shinRange of motion: 26°Axial rotation: 12°Light weight and low maintenance

The BioStep™ LP features NRG™ Technology providing secure contact with the ground and responsive action. It is suggested for active users with long residual limbs.Range of motion: 20°Increase shock absorptionLight weight and low maintenance

The BioStep™ XT features NRG™ Technology for maximum energy storage and return. It is suggested for high impact activities requiring torsional movement and for occasional sport actives.MultilayerDynamic calf and shinRange of motion: 26°Axial rotation: 16°Light weight and low maintenance

The BioStep™ PRO features NRG™ Technology with enhanced torsional movement. It is suggested for active patients to prefer a firm connection to the ground with the benefits of torsion.MultilayerDynamic calf and shinRange of motion: 26°Axial rotation: 12°Light weight and low maintenance