Integrated seamless midsole and upper construction set a new level of fit, stability and lightweight performance. Off-set center flap mounted Boa® L6 dial creates a sleeker profile with quick adjustments. Surround wrapping upper structure reduces overlap and provides a glove-like fit. Low stack height midsole stabilizes foot and maximizes power transfer efficiency. Perforated synthetic leather composite upper enables superior fit and breathability. Women' specific last for a natural, comfortable fit. Lightweight glass fiber reinforced nylon sole for power transfer