Designed for freedom and comfort, with ultralight performance fabric that's easy give, so that you can give your all without being held back. Multiple hidden pockets and a built-in panty make these shorts as functional as they are soft. Made of knit recycled polyester, polyester, and spandex. Extra wide waistband is sturdy stretch microfiber that's self lined inside. Covered elastic band at rim of waist for total security. Infinity loop drawstring inside front of waist helps you cinch fit. Performance panty is built into shorts so that you can jump right in and take on your workout! Soft, discreet elastic is sewn onto leg openings of panty for a secure fit. On-seam pockets are centered towards front for less motion, and have pinhole mesh bags. Vent flap at top rear is stitched down along edge so that it's open without exposure, and allows for uninterrupted airflow. Two small stow pockets built into top of front of waist. Pocket at left has an attached elastic key loop. Phone pocket built into back of waist with an overlapping flap at top to keep valuables in. Vented hems are dolphin-style at back so they'll move more easily up and down leg as you run. DriLayer wicking technology helps fabric quickly evaporate away moisture. Heat-set vinyl Brooks logo in same color as short on front left leg. Cutaway fabric info tag is attached to back left of waist, outside of panty. Panty has a sewn-in cotton crotch liner for complete comfort.