The Ultra Natural Boat Mesh features an upper which is made of Leather/Mesh. Profile is Innovation and design simplicity has created the best K-Swiss performance deck shoe. DECK TRACTION is achieved with a high-wrapping, rounded-edge, siped, gum rubber outsole with water-channels and fle grooves. STAY DRY with an innovative water-channeling system built into the sockliner, midsole and outsole.