Engineered mesh upper. Yarn in the upper contains at least 50% Parley Ocean Plastic and 50% recycled polyester. adidas Primeknit collar. Sock-like fit. Lace closure. EVA stabilization frame. External heel clip. Boost midsole. Continental rubber outsole. adidas Terrex x and wander branding. and wander once again reimagines the Free Hiker 2 for its latest collaboration alongside adidas Terrex. This lightweight hiking shoe is perfect for thru-hikes and all-around weekend exploration, offering next-level comfort and support to extend your range on the trail. Pairing a soft engineered mesh upper with an adidas Primeknit collar, the shoe is designed to hug and form to your foot. An internal frame and heel support provide stability along the way, as you’re able to confidently move over rocky terrain with the help of the Continental rubber outsole. adidas’ patented Boost tooling is incorporated into the midsole to bring energy with each step, whether out on the trails or wandering through city streets.