Adidas Hyperboost Edge Red White

Two ways to use it. As a walking and travel shoe, where the underfoot bounce genuinely pays off across long days on hard floors, worn with black joggers and a plain tee so the red stays the only strong colour. Or as a gym and training shoe with shorts, where the responsive midsole suits repeated impact better than a flat court sole. Size to your usual running length with a little room at the toe. Clean the upper by hand with a soft brush and mild soap, never in a machine, and store away from windows because ultraviolet light is what turns a pale midsole permanently yellow.

adidas has always chased engineering spectacle alongside heritage. The adidas 1 of 2005 was marketed as the world's first intelligent shoe, with a microprocessor performing five million calculations a second to adjust cushioning, and springblade replaced foam with splayed blades. Boost is the version of that instinct that actually worked, becoming the technology carried across the brand's most commercially important footwear. Shoes in this family sit under the three angled bars introduced in 1997 by creative director Peter Moore rather than under the Trefoil, which is adidas telling you this is a performance object first.

Boost is a thermoplastic polyurethane developed with German chemical company BASF, made from thousands of fused TPU pellets whose bounce comes from how the material is processed rather than from the raw polymer. It returns more energy than the industry standard EVA foam and behaves more consistently across temperatures, which is why adidas built the Ultraboost, NMD, Energy Boost, Pure Boost and adizero Adios Boost around it. Expect a soft, springy underfoot feel rather than a firm one, and a knit or engineered textile upper that stretches with the foot. Red uppers hold their colour well, but exposed foam midsoles yellow with sunlight and cannot be bleached back once they do.