The Stella McCartney x adidas Women's UltraBoost 20 'Trace Khaki' showcases a full-length Boost midsole, covered in a stylized camo pattern and supported by a grippy Continental Rubber outsole. A drab olive green finish is applied to the breathable Primeknit textile upper, made with 50% recycled polyester and 50% Parley Ocean Plastic, composed of marine plastic waste gathered from the shorelines of remote islands and coastal communities.