Designed to deliver next level performance, the Evolve Nexxo is the newest shoe in the Chris Sharma Signature Series it delivers exceptional power, and incredible edging while remaining comfortable enough to wear during long training sessions in the gym. . . . . . Synthetic forefoot with microfiber lining for the ideal combination of performance and comfort. Unlined leather mid and rear foot delivers sensitivity, comfort, and fit. Knuckle Box and Love Bump force your toes into a powerful position without discomfort and eliminate hot spots that can occur in other shoes. Elastic band around ankle and hook and loop closure deliver a secure fit. EPow provides maximum performance by ensuring tension and power .