The adidas Ultra Boost have boost™ foam in the midsole that has an incredibly responsive ground feel and keeps its form even in colder-than-cold weather. These shoes are designed to return energy to every step you make, and they feature a seamless and stretchy Primeknit upper, TORSION® SYSTEM that supports the midfoot while allowing for natural motion, and a stretch web outsole that adapts to your foot strike.Features Include:Weight: 268 g (size UK 5.5)boost™'s energy-returning properties keep every step charged with an endless supply of light fast energyEngineered mesh upper with various types of mesh in different areas of the foot; Seamless and stretchy Primeknit forefoot adapts to foot's natural expansion and helps reduce irritationBootee construction for comfortable fit; Featherweight sockliner adapts to the foot for customised fit and feel; TORSION® SYSTEM for midfoot integrityHighly elastic snug-fitting heel with external heel counter for natural Achilles movement stability and comfortEnergy-harnessing stretch web outsole adapts and stretches with your foot strike and movement Fast Delivery ORDER BY 4PM FOR NEXT DAY DELIVERY within the UK Mainland +44(0)871 423 2020. Pro-Direct Select offers competitive rates on worldwide delivery to bring you the latest products from the biggest brands. Please select your destination from the list below to see delivery options and costs. Read More