Topo Athletic Phantom Road Running Shoe For Women A 30mm x 25mm stack height and 5mm drop makes the new Phantom Topo's most cushioned road running shoe to date. Strategically placed rubber adds traction and durability where needed; Zipfoam, a proprietary new lightweight midsole compound keeps this shoe springier with more rebound than traditional EVA. A breathable engineered mesh upper with lightly printed overlays and an external TPU heel counter help keep the runner secure over the platform. Specs - Weight: 8.6 oz // 244 g (Size 7) - Rubber Outsole: 4mm - Midsole: 21mm EVA (Heel) // 16mm EVA (Ball) - Footbed: 5mm - Total Stack Height: 30mm x 25mm (5mm drop) Designed for Road Running Topo's road collection was born from the belief that our bodies are uniquely designed to run with ease and efficiency. However, paved surfaces and concrete can sometimes work against us. Each product in this collection allows you to access varying levels of comfortable running, while offering additional features to address the repetitive impact and stress from road running.