Don't feel the road. Feel comfortable foam. Featuring adidas' innovative BOOST technology, this running shoe helps propel you to a new personal best and keeps your fast feet feeling fresh. Breathable synthetic upper with stretch construction promises a comfortable fit. adidas insists that BOOST foam midsole rebounds faster and more complete than EVA. which results in consistently smooth ride. BOOST outsole with overlapping, high-performance rubber grids for traction. Wt. 7.7 oz.