Responsible Collection: Recycled/Repurposed Upper Material: synthetic Closure: lace Midsole: BOOST foam Sole: Continental rubber From day hike to multi-day trek, these adidas Terrex Free Hiker 2. 0 Low Hiking Shoes support your feet with the lightweight feel of a trail runner and the stability of a hiking boot. A breathable, waterproof upper helps your feet regulate their temperature, and the gusseted tongue construction offers step-in ease and comfort. The BOOST midsole energizes every stride with extra energy and provides all-day comfort. The EVA frame adds stability through rugged, rocky terrain. 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.*This shoe typically runs large, so we recommend going down 1/2 a size for ideal fit*