The Endura MT500 Protector Undershorts II have a secure fit and made with a durable nylon lycra with a high shock absorption D30 inserts. Endura MT500 Protector Undershorts II Features Secure fit durable nylon Lycra® fabric High shock absorption D3O® inserts on hips, lower leg and tailbone areas 500 Series Mountain, stretch antibacterial pad with highly breathable reticulated foam All seams flat locked for toughness and comfort Seamless front crotch Jacquard soft touch waistband and hem gripper Clickfast™ system Endura MT500 Protector Undershorts II Materials Nylon 45% / Polyester 37% / Elastane 18%