This nylon underarm protector is a significant advance over the usual design. Instead of the normal two plies of unbreathing fabric held close against heat and sweat, this nylon has a terry cloth liner to absorb moisture and let heat trickle out. It is held close by a standard single strap around the rib cage and features a Velcro, micro-adjustable collar strap for perfect seating. Even with slender addition of the terry cloth liner, the deluxe is still supple and fits under a nylon jacket without a ruffle.