Fast and fly. The Nike Mercurial SuperflyX Academy gives you the speed cleat feel in the most streamlined look possible. The knit Dynamic Fit collar moves the upper onto the ankle for locked down fit and a seamless look. New low-profile collar with Dynamic Fit technology. Mesh and NIKESKIN upper fits snug to the foot. Heel lining grips to keep foot from slipping inside the shoe. Non-marking rubber outsole designed for artificial turf traction.