The Adidas Stella McCartney Barricade Boost Fit Tip: Length - Slightly long. Width - Medium. Built-in sock liner tongue. Arch - Medium. Little to no break-in. This great looking, comfortable Adidas tennis shoe is lightweight, stable, and durable making it ideal for any athlete. The Adidas Stella McCartney Barricade Boost women's tennis shoe features a breathable mesh upper, Boost technology in the heel for maximum cushion and energy, and a bootie construction for a locked. Ref: AC8258