Key Features: SPD Adventure outsole gives great traction off-road when hiking off the bike, Nylon shank in sole for improved stiffness and power transfer, Quick-Lace lacing system for the perfect tailored fit and quick-release, Velcro® strap to give an even more secure fit plus to house the Quick-Lace system, Side mesh ventilation and perforated front upper for air flow and cooling while riding, Padded ankle area and tongue for extra comfort, Externally reinforced toe box and back of shoe for increased durability, Removable and interchangeable foot-bed.