Asics GEL-Nimbus 9 Sneakers Black / Pure SilverNot only one of the best running models but the GEL-Nimbus 9 by Asics has also become one of the most popular lifestyle sneakers, thanks to its functionality and futuristic design. At least 20% of the main upper material is made of recycled leather. Inserts at the heel and forefoot provide advanced cushioning. Mesh Upper Leather Overlays GELTM Technology Rubber Outsole Style Code: 1201A424-005.