adidas Primeknit+ textile upper. Yarn in the upper contains at least 50% Parley Ocean Plastic and 50% recycled polyester. Textile lining. Linear Energy Push system. Light Boost tooling. Continental Better Rubber outsole. Lace-up fastening. Three Stripes detail. As the name suggests, the Ultraboost Light is adidas’ lightest Ultraboost ever. The silhouette incorporates a Light Boost midsole, with a unique molecule design that makes it the lightest Boost foam to date. Delivering unmatched energy and ultimate cushioning and comfort, the sneaker features a Primeknit+ textile upper made with at least 50% Parley Ocean Plastic and 50% recycled polyester. Below, a Continental Better Rubber outsole is put into play to further improve the brand’s impact on the environment.