NIKE SB Air Zoom Eric Koston (Dark Grey/Black-Wolf Grey) Men's Skate Shoes Suede Cupsole sole Durable one-piece upper provides support with a clean, classic look. Sockliner has a built-in Zoom Air unit for enhanced cushioning. Full-length Lunarlon footbed provides plush, flexible comfort. Rubber outsole provides durability and traction. Forefoot pivot circle helps you change direction easily. Internal no-sew construction feels smooth against your skin.