The adidas PureControl Ultra Boost Blue Blast delivers a sock-like lockdown and responsive cushioning that redefined the performance runner aesthetic.

Specs:

• Upper: Primeknit woven construction for seamless, adaptive fit
• Midsole: Full-length Boost foam for energy return and all-day comfort
• Outsole: Continental rubber for superior grip on wet and dry surfaces
• Closure: Elastic knit lacing system integrated into the upper with a pull-tab heel
• Lining: Textile interior for breathability and moisture management
• Branding: adidas wordmark on tongue and heel tab; Three Stripes woven into lateral side
• Weight: Lightweight engineered for running and casual wear
• Fit: Laceless design with a snug, sock-like entry

The adidas PureControl Ultra Boost in Blue Blast (style code BY9090) uses a Primeknit upper that wraps the foot without lace pressure, while the Boost midsole maintains its signature responsiveness. This laceless runner works best for commute-heavy days or low-mileage jogs where you want effortless step-in and consistent energy return.