With the help of 1.2 million foot scans, adidas updated the Ultraboost with a complete 360° female fit improvement. And they didn't stop there. They've re-engineered the rubber outsole. They tested hundreds of prototypes. They kept going until we saw visible improvements in performance. The result? 4% more forefoot energy return, compared to Ultraboost 21 for women. The adidas PRIMEKNIT upper includes a narrower heel fit, designed to avoid heel slip and blisters. You'll be riding on a BOOST midsole with a Linear Energy Push system.

Regular fit
Lace closure
adidas PRIMEKNIT textile upper
Soft heel fit
Linear Energy Push system
BOOST midsole
Product Code: GX5589