Running Shoes This shoe was created for endless energy return, mile after mile. It won't stop until you stop. Techfit upper is designed to offer natural, flexible support and a comfortable sock-like fit. Active FORMOTION technology provides a contoured fit that stretches as your foot moves. Boost technology keeps every step charged with an endless supply of light, fast energy. Rubber outsole adds reliable grip.products_model:N53E616nMen's Shoes - adidas PureBoost 2 Black/Grey - N53E616n