AGGRESSIVE TRACTION FOR CHANGING CONDITIONS The Nike Zoom Rival XC Unisex Running Shoe features an innovative outsole designed for maximum traction on challenging cross country racing courses. The lightweight upper is made of breathable mesh for comfort, and the midsole provides great midfoot support with minimal weight. Available in men's sizes. Reference the Size Chart above to convert a women's size to men's. Benefits Thin mesh upper for exceptional breathability with a water-shedding finish for comfort in changing conditions Compression molded Flashlon midsole for a lightweight, responsive feel Molded medial arch for optimal midfoot support Rubber Waffle outsole for traction and durability Four spike receptacles and targeted flex grooves for optimal traction on a variety of surfaces Replacement spikes and carrying bag included