4% MORE FOREFOOT ENERGY RETURN COMPARED TO ULTRABOOST 21 WITH A COMPLETE 360° FEMALE FIT IMPROVEMENT
With the help of 1.2 million foot scans, we updated Ultraboost with a complete 360° female fit improvement. And we didn't stop there. We re-engineered the rubber outsole. We tested hundreds of prototypes. We kept going until we saw visible improvements in performance. The result? 4% more forefoot energy return, compared to Ultraboost 21 for women. The 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.
Comfort Tailored to the Female Foot: Narrower heel fit & lower instep curve for a snug feeling, designed to avoid heel slip and blisters.
Support Based on Female Biomechanics: Newly refined outsole for softer cushioning and designed to help you say goodbye to overpronation.
From Problem to Performance: This product is made in part with Parley Ocean Plastic. Just one of the innovations that represent our commitment to help end plastic waste.
The shoe's upper is made with yarn containing 50% Parley Ocean Plastic — reimagined plastic waste, intercepted on remote islands, beaches, coastal communities and shorelines, preventing it from polluting our ocean.
