Built for impact. These IVY PARK Ultraboost shoes take a celebrated adidas style and injects it with utilitarian swag and a touch of attitude. Energy-returning cushioning creates a sense of fluid motion for a smooth ride. A hook on the heel clips to your gym bag, showing off the bold style even when they're not on. Unisex shoe. Sizing on tag/box is in Men's, but we have converted the men's sizing to women's on this listing. See sizing chart 11.5 Men's = 12.5 Women's