Designed to enhance your workout and eliminate chafing, The Ultimate Training Shorts are our most technical yet. Featuring deep side seams, an exposed buttery-soft compression liner, and loads of hidden pockets. Prepare to train like never before. Shell Fabric: 86% polyester/14% spandex Liner Fabric: 85% Polyester/15% Spandex 4-Way stretch Vented Side Pannels Double Layered Waistband Anti-chafe Boxer Brief Liner