Adidas Ultraboost 21 Gray Running Shoes

Adidas Ultraboost 21 in monochromatic gray tones features a Primeknit+ upper for adaptive fit and breathability, with signature three-stripe TPU overlays for structure and branding. The full-length Boost midsole delivers responsive cushioning and energy return, while the Continental™ rubber outsole ensures reliable traction on urban and light trail surfaces. A refined heel counter and sock-like collar enhance lockdown and comfort for daily wear or light running. The clean, tonal design—gray mesh upper, medium-gray overlays, off-white Boost sole, and subtle black accents—exudes minimalist streetwear appeal. Ideal for urban commuters, fitness enthusiasts, and sneaker collectors seeking performance-meets-style. Lightweight yet supportive, these shoes transition seamlessly from gym sessions to casual outings. Seasonally versatile for spring, fall, and mild winter days. The 'Ultraboost' text embossed on the heel cage confirms the model identity, and the iconic Adidas three stripes on lateral side confirm brand lineage without sub-brand confusion (not Yeezy, not Originals, not Y-3).