Ultraboost 21 Primeblue FX7729 Size:10.5 Encased elastic waistband with adjustable

Encased elastic waistband with adjustable drawcord

Cored-out outsole enhances flexibility and comfort

Cutouts in the outsole allow you to see the midsole foam while reducing weight

Cropped waist

Wings logo on heel

Ultraboost 21 Primeblue FX7729 Size:10.5 Encased elastic waistband with adjustableThe definition of best never rests. When we dropped the first adidas Ultraboosts, they were the best running shoes we ever made. With each new update, we raise the bar. Now you get the cushioning you didn't know you needed with the energy return you've always wanted. This version features 6% more Boost capsules and a supportive adidas Primeknit+ upper. It gives you an extra push of energy in each step that comes from the Linear Energy Push system,