PUMA Faas 800 Women's Running Shoes Rubber sole Air Mesh Upper - With reflective elements, provides visibility in low light conditions. Ortholite Sockliner - Provides underfoot cushioning. Bio-Ride Midsole - Provides a more natural rhythm and enhanced speed. IdCELL - For improved shock absorption in forefoot and heel. CELL has been engineered to combine cushioning and stability. EverTrack Outsole - Delivers optimal grip and traction.