At the front of the waist is an expandable waterproof pocket for a firm and secure phone storage.Extra light stretch fabric for absolute freedom of movement.Builtin underpants for better coverage and support.The 4Way Stretch design enables material elasticity in all directions.The material perfectly diverts sweat and it withers very quickly.Laser perforations for better ventilation.Soft knit waist with internal pullup and builtin back pockets.The front pocket of the Speedpocket can hold most mobile phones up to 8 x 15 cm in size.Length of legs from crotch: 18 cm.