The adidas women’s UltraBoost 21 ‘White Hazy Rose’ highlights subtle pops of color on a performance runner designed for enhanced energy return. A stark white finish distinguishes a Primeknit upper that incorporates Primeblue, a high-performance material made in part with Parley Ocean Plastic. A translucent heel counter in a contrasting dark pink hue provides rearfoot support. The sneaker is mounted on a full-length Boost midsole, designed to yield a more responsive ride with the addition of a revised Torsion system dubbed Linear Energy Push.