Grey, cream and silver-tone ‘UltraBOOST 21’ high-top sneakers from ADIDAS by Stella McCartney, the ‘Primegreen’ line. This lace-up pair features a yellow logo print and a white, black and yellow Stretchweb Continental™ rubber sole with 6% more Boost capsules. Primegreen is a line that uses recycled materials in the production of high-quality products.