Asics GEL-Lyte33 Sneaker. Women's running stability sneaker. Designed for underpronators to mild overpronators. F.A.S.T. Drop™ features 6mm heel-toe differential for faster running. F.A.S.T. Heel™ lightweight heel construction minimizes structural weight. F.A.S.T. Ride™ consists of firmer Solyte® midsole for extra responsiveness. GEL® Cushioning System absorbs shock and adds comfort. Solyte® midsole material for lightweight cushioning and durability. F.A.S.T. Sole™ minimal outsole material placed in high wear areas. AHAR® (ASICS® High Abrasion Rubber) outsole material for supreme durability. Guidance Line® enhances gait efficiency. Lace-up closure. Upper: lightweight, breathable mesh and synthetic.