UA Microthread fabric dries faster, does not stick to the skin, does not scuff and is flexible without absorbing sweat. The expandable center waistband pocket is waterproof and keeps your phone safe without bouncing. The material drains sweat away and dries very quickly. 4-Way Stretch technology allows for better movement in every direction. Elastic waistband with internal drawcord. Secure zippered pockets on the hand. Zippers at the ankles for adjustment and easy on and off. The back pocket of the Speedpocket comfortably fits most phones up to 15cm x 7cm. Leg span: 68,5cm.