Built to run long, the ASICS GEL-Cumulus 18 GTX is features a breathable, waterproof upper that keeps feet dry and fresh in even the roughest weather conditions. Seamless, breathable mesh upper for a cool, comfortable fit. ComforDry Sockliner provides extra cushioning and anti-odor properties. Heel and forefoot GEL Cushioning Systems mimic the foot's natural tissue, absorbing and dispersing shock on impact. FluidRide midsole combines durable cushioning and bounce back for a comfortable run, mile after mile. Impact Guidance System's linked components and Guidance Line vertical flex groove work together to create a smoother, more efficient running stride. Solid rubber outsole for durable traction on any surface. Wt. 12.1 oz.