Run the Future 🌍 - Where performance meets sustainability! Enjoy a sock-like fit with the adaptive adidas Primeknit upper. Conquer any terrain with the Stretchweb outsole and Continental Rubber. Midfoot cage and heel counter provide the stability you need. Experience a run like never before with the responsive Boost midsole. Run with purpose, made from high-performance recycled materials. Boost midsole Recycled materials Sock-like fit The adidas Men's Ultraboost-21 Trail Running Shoe combines cutting-edge technology with eco-conscious materials, featuring a sock-like fit, responsive Boost midsole, and superior traction for an energized running experience.