On Cloudultra Men's Trail Running Shoes Indigo/Copper : Tame the trail with comfort and versatility. The On Cloudultra provides superior cushioning, with dual layers of Helion(TM) superfoam for a soft ride. Slip into a breathable two-layer sandwich mesh upper with TPU reinforcements for durability. Get the traction to dominate mixed terrain under the Missiongrip(TM) outsole. The innovative FlipRelease(TM) system makes finding the perfect fit as easy as flipping a switch. From forest trails to gravel roads, the On Cloudultra takes you anywhere! Who's it for? Trail runners looking for a cushioned shoe that provides comfort and versatility on off-road courses. Shoe Technology Upper: Breathable two-layer sandwich mesh upper reinforced with lightweight TPU for durability. Wrap-fit construction is perforated for comfort. FlipRelease(TM) system makes finding a roomier fit easy. Midsole: Double layer Helion(TM) superfoam works with two layers of CloudTecA(R) to provide long-lasting comfort. Outsole: Missiongrip(TM) provides traction to master mixed terrain. Closed-channel construction stops stone from catching.