Worn a couple times and decided I am NOT a trail runner. Give me sidewalks and streets! lol These trail-running shoes are designed for ultra-distances and varied terrain, featuring: Dual CloudTec® Layers: A double layer of Helion™ superfoam to provide maximal cushioning for long-distance comfort. FlipRelease™ Tool: A small plastic piece on the laces that can be flipped to quickly adjust the fit, easing pressure on the foot if it swells during a long run. Missiongrip™ Outsole: Designed to provide reliable traction on multiple types of terrain. Breathable Upper: Constructed with a two-layer sandwich mesh for ventilation and a sock-like fit. Size 8 women