Desctiption adidas - Solar Boost Core Black (W87e1725) This Solar Boost features a braided mesh upper that twists together thousands of strands of color to create an almost iridescent appearance while still offering plenty of wide open cooling. Beneath the foot, a concentrated wedge of Boostâ„¢ cushioning focused in the heel keeps every step feeling light, plush and energy-filled.Boost energy-returning properties keep every step charged with an endless supply of light, fast energySTRETCHWEB rubber outsole is lightweight and elastic, adapting to the ground for stability and working strategically to optimize the unique properties of boost from touchdown to push-offNet mesh layered over base mesh for breathability and a knit feelMolded responsive EVA sockliner for comfort and support; High-performance lining wicks away sweat Shipping Weight: :0.51kg