Everyone knows that running on trails is rugged and challenging but the everyday trials of city running can often be overlooked. Hard surfaces quick turns and crowded streets all bring with them challenges of their own and the On Running Cloudswift Running Shoe was designed to meet them all. Created for maximum on-road performance this shoe utilizes On Running's new Helion midsole technology. Described by On as a "superfoam" Helion provides underfoot comfort cushioning and impact absorption for your long city miles on the pavement. It's designed to be light and flexible to accommodate the quick movements you'll be making around street corners and pedestrians and offers more durability than most foams to withstand training miles exclusively on asphalt and sidewalks. In addition to the midsole you've got a breathable sock-like mesh upper that keeps you cool on sweltering city days and a durable high-traction outsole that'll keep your footing even when the sidewalks are slick with fresh rain.