The Ultraboost running shoes serve up comfort and responsiveness at every pace and distance. Designed specifically for women, this version comes with extra lugs on the outsole for a more centred transition. The adidas PRIMEKNIT upper includes foam around the heel to prevent blisters. You’ll be riding on a BOOST midsole for endless energy, with a Linear Energy Push system for more responsiveness than ever before.This shoe’s upper is made with a high-performance yarn which contains at least 50% Parley Ocean Plastic —? reimagined plastic waste, intercepted on remote islands, beaches, coastal communities and shorelines, preventing it from polluting our ocean. The other 50% of the yarn is recycled polyester.