SIZE 8 Airy coverage and streamlined storage for running faster and farther. Details that Breathe - Strategically placed back vents bring the breeze. Stays Put - Infinity drawcord for a custom fit that stays put. Performance Ready - Super-lightweight Swift fabric wicks sweat and dries fast. Keep Essentials Close - Back zippered pocket stows small necessities. Designed for Running Lightweight Four-way stretch Sweat-wicking Quick-drying Liner is lightweight, sweat-wicking, and quick-drying with added Lycra® fibre Low Rise, 2.5" Length