Redesigned recycled mesh upper offers increased durability, a secure fit, and excellent breathability; High-cushion 35x30mm platform delivers exceptional comfort and protection for long trail runs, hiking and road-to-trail adventures; Roomy Toe Box allows toes to spread naturally and comfortably; OrthoLite Performance Insoles with long-term resilience and anti-microbial properties; Vibram XS Trek Outsole features an intentional lug pattern and depth built for optimal all-terrain performance; Gaiter Compatible for additional protection from dirt, rocks, and twigs on the trails (sold separately); Best for Trail Running, Hiking, Road to Trail; Stack Height: 35mm (Heel) / 30mm (Forefoot); Heel to Toe Drop: 5mm; Weight: 10.7 oz (M9)