Strategically placed vents encourage airflow. Lightweight, Swift Fabric(Click to Close) Lightweight Four-way stretch Sweat-wicking Quick-drying Liner is lightweight, sweat-wicking, and quick-drying with added Lycra® fibre Wide waistband has an infinity drawcord that stays put. Keep Essentials Close Card, keys, gels—zip them up in the back pocket. Built-in liner offers extra coverage Connected gel pockets on the waistband gives you flexible storage options Secure back pocket Continuous drawcord