Design:Breathable PRIMEKNIT upper hugs the foot Corduroy details add a distinctive finishTorsion System gives you lightweight support and stability through the archLace closure for a secure fit Upper is made with a high-performance yarn which contains at least 50% Parley Ocean Plastic — reimagined plastic waste, intercepted on remote islands, beaches, coastal communities and shorelines, preventing it from polluting our ocean. The other 50% of the yarn is recycled polyester. In-Shoe Comfort:BOOST midsole delivers incredible energy return Durability & Traction:Continental™ Rubber outsoleAdditional Details: Weight: 10.8 oz. Midsole drop: 10mm (heel: 25mm / forefoot: 15mm)