Hard-hitting trail running shoe delivers high energy return and impressive cushioning – even hours into your mission. Regular. True to size. Hours of energy Smart tech to power your longest trail runs. Engineered to keep you feeling fresh even after several hours on the trail, the Cloudultra 3 delivers maximized energy return with ample cushioning thanks to a Helion™ HF hyperfoam midsole. So you can go, go, go. Durable upper It's as tough as it looks. The shoe features an engineered Leno weave upper which is highly durable and abrasion-resistant in zoned sections, as well as being breathable and quick drying. Giving your feet everything they need to complete the mission. Advanced grip Meet our most advanced grip – ever. Featuring an updated Missiongrip™ outsole with a new lug profile developed with FEA (Finite Element Analysis). For unparalled grip and traction.