Product details:Power your running performance with the Pureboost 23 trainers from adidas. The lightweight uppers are crafted from breathable mesh. The brand's BOOST technology throughout the soles delivers ultimate energy return to help you go further, faster and for longer. Meanwhile, strategic cutouts in the outsoles compress and spring back through each stride for added comfort. Adidas Women's Pureboost 23 Trainers - 4.5 - Grey Mix, Grey Mix