There is an expandable, waterproof pocket at the front waist for firm and secure storage of the phone. Extra light, stretchy fabric for absolute freedom of movement. Built-in underpants for better coverage and support. The construction with 4-Way Stretch technology allows the material to be elastic in all directions. The material wicks away sweat excellently and dries very quickly. Laser perforations for better ventilation. Soft knit waistband with internal drawstring and built-in back pockets. The front Speedpocket can hold most mobile phones, up to 8 x 15 cm in size. Leg length from the crotch: 13 cm.