The adidas UltraBoost 22 ‘Grey Three’ treats the performance running shoe to a monochrome makeover. The grey Primeknit upper is composed of 50% recycled polyester and 50% Parley Ocean Plastic, featuring upcycled plastic waste collected from beaches and coastal communities. A molded midfoot cage is integrated into the laces for a locked-in fit, while an external heel counter offers rearfoot stability. The lightweight build is mounted on a full-length Boost midsole in a contrasting white finish. A Stretchweb outsole made with Continental Better Rubber delivers grippy traction underfoot.