Ultra Boost

From adidas

Since boost™ technology was introduced in 2013 it's been fitted into all existing styles of adidas shoes, but the Ultra Boost running shoe has been completely built around boost™. With no EVA, the midsole is entirely constructed from boost™, giving you the ultimate energy return. The outsole has been re-designed with stretch web to work and compliment this by allowing boost™ to move and adapt, expanding with the foot and with no restrictions. If this wasn't enough, the heel counter has been made softer and opened up slightly around the achilles for a more natural feel and movement, but without compromising on its support. Moving upwards the upper is constucted from Primeknit, a single yarn, for a sock-like fit that, like the outsole, allows for the natural expansion of your foot but is still supportive with a slight compression. adidas boldly claim that this is the greatest running shoe ever, why not see for yourself?

boost™ is the most responsive cushioning ever: The more energy you give, the more you get

adidas Primeknit upper wraps the foot in adaptive support and ultralight comfort; Wool yarn used on upper for warmth

TORSION® SYSTEM between the heel and forefoot for a stable ride; Supportive cage wraps around the midfoot for a lockdown fit

Manufacturer's description, supplied via the retailer feed.