The adidas Ultra Boost 21 Grey White boasts an all-grey body with a tech-knit finish and a white sole adorned by a textured pattern. Utilizing adidas's PRIMEKNIT technology, the shoe's upper features recycled PRIMEBLUE material in crisp white knit. The solid weave of the mudguard transitions to a breathable surface on the vamp, while the iconic 3-Stripes appear in synthetic material on the quarter panels. A plastic heel stabilizer curves near the counter, creating a supportive 'U' shape. The sock fit of this shoe ensures comfort, complemented by a grey lace closure for a secure fit. Released on January 28th, 2021, this shoe had a retail price of $180. If you're looking for a running shoe that looks as good as it performs, the Adidas UltraBoost 21 'Grey' sneaker is the perfect choice. This stylish shoe offers a monochromatic neutral finish that pairs well with any outfit, while remaining lightweight and responsive with its breathable knit build and full-length Boost cushioning. The revised Torsion system enhances forefoot stiffness and energy return, making it an ideal running companion.