UA FLOW: Unparalleled comfort, ground contact and traction, all without creaking.Breathable upper: Reinforced support material with designed ventilation.BOA Fit System: Personalized fit.Internal foam padding from heel to toe with Iso-Chill technology that feels good to the touch.We've made it easy for you, so you can wash your shoes in the washing machine to keep them fresh and clean.Customizable heel: For a quick transition from training mode to recovery mode.