NIKE Mens Free Trainer 5.0 TB Training Shoes Game Royal/White 579811-402 Size 11 synthetic-and-mesh Woven upper made from lightweight nanoply provides a snug fit. Dual-density midsole offers lightweight, plush support. Flex grooves help promote natural range of motion. DiamondFLX design enhances multidirectional flexibility. Triangular-shaped nodes in the outsole provide excellent grip.