Under Armour Men's Micro G Limitless TR 2 TM, Steel/Black, 12.5 D Synthetic-and-mesh Form fitting compression half-sleeve wraps your foot in a tight layer of support Overlay uses a synthetic on the lateral side for lightweight protection and leather on the medial side for durability Leather toe cap Full-length Micro G foram midsole with added cushioning in the heel and strategic flex grooves in the forefoot work with your natural stride Strategically placed rubber outsole traction covers high impact zones for greater durability with less weight