The best way to warm up on a cold day? Go running. As you stride through chilly weather, these adidas running shoes keep your feet dry and warm. CLIMAWARM traps heat and releases sweat for a warm, dry and focused performance, and a water-repellent mesh upper sheds light rain. Of course, it wouldn't be an Ultraboost without the incredible energy return of a Light BOOST midsole. CLIMAWARM has insulating materials that trap warmth for optimal body temperature. Stay dry inside with sweat-wicking fibers that keep skin dry and comfy. Dial up warmth retention with first layer comfort to boost heat. This product features at least 20% recycled materials. By reusing materials that have already been created, we help to reduce waste and our reliance on finite resources and reduce the footprint of the products we make.