Speed ​​Eco waterproof is a lightweight hiking shoe made from more recycled materials than other Merrell running shoes. The Speed ​​model is best suited for fast hikers or easier routes , it's easy on the feet and the Vibram outsole with 4mm lugs allows you to penetrate a variety of hiking surfaces. "Eco" refers to the eco-friendly design of this shoe incorporating recycled materials in the upper, midsole and outsole as well as 100% recycled laces, straps lining and insole covers to reduce waste and use natural materials.