Size & Fit True to size: We recommend ordering your usual size. Size guideMen's and women's adidas footwear sizing Heel-toe 22.1 cm 22.5 cm 22.9 cm 23.3 cm 23.8 cm 24.2 cm 24.6 cm 25 cm 25.5 cm 25.9 cm 26.3 cm 26.7 cm 27.1 cm 27.6 cm 28 cm 28.4 cm 28.8 cm 29.3 cm 29.7 cm 30.1 cm 30.5 cm 31 cm 31.4 cm 31.8 cm 32.6 cm 33.5 cm 34.3 cm 35.2 cm EU 36 36 2/3 37 1/3 38 38 2/3 39 1/3 40 40 2/3 41 1/3 42 42 2/3 43 1/3 44 44 2/3 45 1/3 46 46 2/3 47 1/3 48 48 2/3 49 1/3 50 50 2/3 51 1/3 52 2/3 53 1/3 54 2/3 55 2/3 UK 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 16 17 18 19 US - Men 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 16 17 18 19 20 US - Women 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 15.5 -- -- -- -- -- -- Description Hyperboost Edge introduces a new era of road running by combining maximum cushioning, high energy return and lightweight performance in one shoe. The shoe combines three breakthrough technologies: the new Hyperboost Pro midsole, a PRIMEWEAVE upper and a LIGHTTRAXION outsole to balance comfort and responsiveness in every stride. Crafted with no plates or stiffening elements, a new foam works naturally through the gait cycle creating a lightweight and propulsive ride. At the heart of this new running experience is the Hyperboost Pro foam, a high-performance material that provides maximum cushioning, with no compromises. Drawing on adidas’ elite racing midsole technologies, the new foam formulation delivers an experience optimized for every type of run, from daily sessions to high mileage training. Features & Benefits Regular: Designed to be a standard fit Not applicable: N/A HYPERBOOST PRO: For those who want more. Feel the charge and ride the rush. HYPERBOOST PRO foam is energy unleashed. For a feeling that needs to be experienced. Style #: KI4393, KI0358, KI4392, KI4401