PUMA - Cell Aether SL Wn's (White/Silver/Blue Glow) - Women's: Running shoe built for the neutral to under-pronator who requires an enhanced cushioning and extended durability. Never trip over your shoe laces again!; Designed with a synthetic leather upper and Duo CELL heel cushioning, the Cell Aether SL is built for the progressive runner interested in innovative and stylish performance technology. Full-grain leather upper. Visible DuoCELL unit in the heel and a CM-EVA forefoot. 2 color EverTrack outsole.