The adidas UltraBoost 4.0 DNA ‘Grey’ dresses the lightweight running shoe in a charcoal Primeknit upper made in part with Parley Ocean Plastic. The sneaker’s lacing system is integrated into the midfoot cage for a lockdown fit, while a molded heel counter cradles the back of the foot for enhanced support and stability. Energy return is generated by a full-length Boost midsole, which is supported underfoot by a flexible Stretchweb outsole built with grippy Continental rubber.