HIKING BOOTS MADE IN PART WITH RECYCLED AND RENEWABLE MATERIALS. A collaboration with Terrex, these adidas by Stella McCartney hiking boots keep you ready for adventure. A lightweight EVA midsole cushions your stride over rocky terrain while COLD.RDY insulation locks in warmth. Waterproof RAIN.RDY technology helps channel moisture away so you stay dry in wet weather. With a synthetic and textile upper and rugged rubber outsole, they're built to handle whatever the journey brings. By choosing recycled, we are able to reuse materials that have already been created, which helps to reduce waste. Renewable materials choices will help us to remove our reliance on finite resources. Our products made with a blend of recycled and renewable materials feature at least 20% total of these materials.