Innovative Primeknit+ with Tailored Fibre Placement brings a precision fit to the upper of a lightweight running shoe set on propulsive Boost cushioning. Supportive elements in the heel and sole promote neutral heel-strike to toe-off movement with every stride, while grippy webbed rubber brings traction without added weight to the tread. Style Name: Ultraboost 20 Running Shoe (Men). Style Number: 5890457.