At the front of the waist is an expandable, waterproof pocket for firm and secure phone storage.Ultra-light, stretchy fabric for maximum freedom of movement.Integrated underpants for better coverage and support.The design with 4-Way Stretch technology allows the material to be elasticity in all directions.The material perfectly wicks away sweat and dries very quickly.Laser perforations for better ventilation.Pleasant knitted waistband with internal tightening and built-in back pockets.Length of leg from crotch: 8 cm.The Speedpocket front pocket can hold most mobile phones, up to 8 x 15 cm in size.