Under Armour Womens Ignite VI SL, Black/Hyper Green/Black, 12 B Synthetic-and-mesh HeatGear lined synthetic strap offers custom fit with adjustable Velcro closure Two layers of Under Armour: Performance 4D Foam: provide unprecedented comfort Anatomical contoured footbed provides added cushioning Re-engineered EVA outsole with durable traction pods provide lightweight cushioning and comfort