Worn a few times. Super comfy. The adidas Men's UltraBOOST 20 Running Sneakers feature a newly-engineered 3D heel frame that is an icon of the running shoe. Flexible and supportive material combine in adidas' smoothest ride yet. Features: High-performance neutral running shoes Primeknit 360 upper wraps the foot with targeted support Boost cushioning delivers incredible energy returns Fitcounter molded heel counter offers a natural fit Torsion Spring integrated through the midsole for support Flexible Stretchweb outsole offers traction on wet or dry surfaces Synthetic and textile upper; rubber sole