Under Armour Spine Slide - Men'sThe strap on the Under Armour Spine Slide is made with a built-in, molded frame that provides a secure fit and feel. Textured mesh foam-backed liner forms a comfortable layer over the top of the foot. Full-length 4D Foam footbed adds lightweight cushioning and greater airflow to keep your feet cool. External Spine outsole provides the ultimate in lightweight support for multi-directional movement. Rubber pods in the high impact heel area add durability.