The adidas UltraBoost Cold.Rdy DNA ‘Grey Core Black’ applies neutral tones to a performance running shoe designed for winter weather. Made with 50% recycled content, the grey textile knit upper is fortified with Cold.Rdy protection that keeps feet warm and dry. An orange pull tab at the heel gives the shoe a solitary flash of color. The sneaker rides on a full-length Boost midsole, reinforced by a Continental WinterGrip Rubber outsole for sure footing on slick surfaces.