The Parley x adidas UltraBoost 21 in the captivating 'Black Grey' colorway is a must-have for those seeking a sleek and stylish performance running shoe. Its form-fitting upper is crafted from Primeknit textile, incorporating 50% Parley Ocean Plastic and 50% recycled polyester, showcasing the brand's commitment to sustainability. Adding to its allure, an embossed UltraBoost wordmark graces the external heel counter, while woven pull tabs at the tongue and heel proudly display both adidas and Parley branding. The sneaker's full-length Boost midsole, in a sleek black hue, ensures exceptional cushioning and responsiveness, while the Continental Rubber outsole provides reliable traction. Whether you're hitting the pavement or simply looking for a fashionable sneaker, the Parley x adidas UltraBoost 21 'Black Grey' is the ideal choice.