Ease into the Ultra Glide 4 and feel the difference. The latest version of our most comfortable trail running shoe is now even lighter and more breathable, delivering a more dynamic, performance-enhancing ride and cooler feet in hot or humid conditions. With improved durability you&&';;ll up stack up the miles, comfortably. Cushioning: Maximal Drop Value: 6 MM Foot Protection: High Lug Depth: 4 MM Run Frequency: 4 or more runs per week Type of Trail: Distance Run Weight per unit: 10 OZ Width: Regular Terrain: Mixed terrain