ERGONOMIC - Ergonomically engineered to help optimize your body's alignment, natural movement & energy. CUSHIONING - Ultra-light iQushion midsole, made of high-rebound air-foam that retains its cushioning, with front-and-back impact pillows. DESIGNED FOR COMFORT - Anatomically contoured footbed diffuses pressure & gives natural arch support. STANDARD WIDTH FIT - This style has a standard width fit, but if you are between sizes, we recommend you size up - see our size chart below for full details on foot length and width measurements. STEADY GRIP - Grip suited to everyday use/road tread. Made from waterproof rubber. Fitflop.