Engineered for fast, competitive mountain running, these women's outdoor shoes are built with a lightweight boost midsole that provides endless energy return. Pro Moderator support stabilizes your stride, and a rugged Continental Rubber outsole penetrates the ground and holds onto slick, slippery surfaces. Designed to echo the contours of a woman's foot, the shoes have a stretchy mesh upper, stable heel, speed lacing and EVA tongue top to ensure a snug, comfortable fit.