Ultraboost DNA "What The" sneakers adidas' signature Boost midsole was first presented in 2014 as a way to step up the brand's cushion support within their sneakers. Years later, the Ultraboost DNA were designed to feature more Boost in the midsole, making the knitted pair a more comfortable and practical approach to the mainstay design. Imported Composition Outer: Polyurethane 100%, Fabric 100% Sole: Rubber 100% Lining: Fabric 100%