Cold, sleet, hail. With the right gear, these are just the tunes to fuel your run. In these adidas Ultraboost WINTER.RDY Shoes, your training cycle is uninterrupted. The water-repellent upper features reflective details. The flexible winter-specific outsole provides enhanced grip for cold-weather training. This running shoe will change the way you think about what it feels like to be comfortable, fast, and have well-cushioned footwear. The adidas Ultraboost sneakers have an active boost foam in the midsole, made of thousands of energy capsules that store and release endless energy with every contact with the ground. As a result, you'll feel incredibly light while running. The shoe features a seamless upper made of flexible Primeknit material, as well as TORSION® SYSTEM technology to reinforce the midfoot. Technology COLD.RDY: Cold has no chance. COLD.RDY is reliable isolation against heat escape with a system of layers that easily adapts to outdoor temperatures. Upper Textile: is a lightweight material, which is offered in a very wide color scale and is mainly used for summer footwear. Synthetics: unlike textile, synthetic fibers are stronger, more durable and quick-drying. Midsole BOOST: The technology of a thousand smaller particles that reduces the force of the impact and at the same time yields an extremely high energy return. Sole Continental