We recommend that you take one size above your usual shoe size. VEJA creates a shoe conceived for treks and hikes: The Fitz Roy is a technical hiking shoe with a solid and stable sole, thanks to multi_x0002_directional crampons and a rock-plate. Weight : 384g (size 43) Drop : 6 mm Ride : Neutral Surface : Outdoor and trek MATERIALS Upper in Trek-Shell Recycled polyester (100%) Panels made in T.P.U. Logo V and heel support insert in Pebax® Rnew® Ricinus oil (62%) Insole Amazonian rubber (12%), sugar cane (47%) Midsole Sugar cane (50%) Outsole Amazonian rubber (31%) Tech lining Recycled polyester (100%) Laces Recycled polyester (100%) Bio-based / Recycled (43%) Made in Brazil Trek-Shell is a very resistant, tightly woven fabric made of recycled polyester. Inspired by outdoor textiles, it provides a reinforced structure, great malleability, and flexibility. The fabric is treated with a PFC-free Durable Water Repellent, keeping your feet safe from light rain or wet ground. This fabric is well suited for outdoor activities.