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. Built-in underpants for better coverage and support. The 4-Way 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 pull-up and built-in 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.