Primeknit upper Lace up closure Pull tabs Rubber outsole The Adidas Yeezy Boost 350 V2 Features An Upper Composed Of Two-Tone Re-Engineered Primeknit. The Midsole Utilizes Adidas' Innovative Boost Technology While A Semi-Transparent Tpu Cage Wraps The Boost And Adds A Distinct Design Element To The Iconic Model. The Adidas Yeezy Boost 350 V2 Slate Is Made With A Series Of Recycled Materials, And At Least 50% Of The Upper Features Recycled Content, This Product Represents Just One Of The Solutions To Help End Plastic Waste.