Inov-8 Unisex F-Lite(TM) 240 Cross-Training Shoes 100% Synthetic and textile Imported Synthetic sole For fitness workouts, cross fit, weightlifting, running Meta-flex technology allows natural flexing in the forefoot, while the met-cradle lacing system holds the foot secure. Both ensure the shoe moves naturally with the foot Rope-tec delivers traction and durability on rope climbs