Sizing Information Runs Narrow: This sock-like fit is snug to the foot. Consider sizing up for the most comfortable fitProduct Features Unique, 2-tone lines of stretchy, breathable Flyknit material make up the upper Textured upper design borrowed from couture fashion Flywire cables are integrated with the laces for a snug, supportive fit Tongue label inspired by space suits; linear VaporMax logo at skin overlay on heel counter Bouncy traction thanks to integrated lugs on the outsole Soft, lightweight and responsive VaporMax technology for a bouncy, light-as-air feel The Nike Air VaporMax Flyknit 3 is imported. Next level VaporMax technology and an upgraded, streetwise upper design join forces on the versatile Women's Nike Air VaporMax Flyknit 3 Running Shoes.