Upgrade your run with Topo Athletic Women's Cyclone road running shoes, our lightweight, fast and nimble trainer. The EVA midsole features a ZipFoam core for a snappy, responsive ride. The 28 x 23 mm stack height provides an optimal level of cushioning on a neutral platform. Strategically placed rubber on the outsole enhances traction and durability. The ultra-light, seamless engineered mesh upper delivers a breathable and secure fit. These women's road running shoes are great for marathons, half marathons and 10Ks.Discover the Topo Fit. Lightweight: Ultralight materials and seam-reducing construction techniques keep weight down and blisters at bay. Roomy Toe Box: Plenty of room for the toes to spread and splay. A secure fit through the heel and midfoot allows the shoe to move with your body. Low Drop: Topo cushioned midsoles are engineered with a 0 to 5mm heel-to-toe drop, encouraging natural loading and foot motion during the gait cycle.