Inov-8 Women's Fast Lift 315 Cross-Training Shoe 100% Synthetic Imported Synthetic sole Heel measures approximately 1" Platform measures approximately 0.25" 16.5mm heel-to-toe drop TPU midsole FastLift sticky compound outsole MetaFlex system Weight: 11 oz (315g) Inov-8 adds heel and midfoot support while keeping weight down for an incredible light shoe for lifting and cross-training.