Available sizes: 8, 9, 10, 7.5, 8.5, 9.5, 7, 10.5, 11.5, 12, 6, 6.5, 5, 5.5. Synthetic and mesh upper is extremely light-weight and breathable. Reflective accenting for improved safety. AdiWEAR carbon rubber compound in outsole for maximum durability. Padded tongue and collar for more secure fit and better comfort, and perforated insole cushioning provides ventilation and support. Moisture-wicking fabric lining absorbs excess perspiration to keep foot cooler and drier. Bounce technology midsole for advanced cushioning and shock absorption.