Light/technical/durable/the Wildfire NXT Knit is a high-performance approach shoe/from the doorstep to the summit/featuring a seamless stretchy knit upper with Matryx® reinforcement that combines heel cushioning comfort and increased climbing precision at the toes. Equipped with our innovative patented 3F system/it wraps around your ankle and the sides of your foot to ensure a good fit and support with great agility. The unique Vibram® All-Terrain™ Megagrip outsole provides reliable grip and traction in all conditions. It features a C.F.F. (Custom Fit Footbed) Pro insole for better arch support and an additional volume reducer included. The laces and insole are made from recycled materials to reduce environmental impact.Matryx® fabric3F System® on the heel and side areasVibram® Megagrip