Women's Altra Experience Flow ST - White/Grey Experience a smooth, efficient road run with gentle guidance built in. The Experience Flow ST is designed for runners and walkers who want light stability without feeling restricted. GuideRail™ technology provides subtle medial guidance only when needed, helping promote a naturally stable stride while staying out of the way when you’re moving well.Underfoot, a low 4mm drop and rocker geometry encourage efficient transitions and an easy toe-off, making the Flow ST a strong choice for daily miles, training runs, and long walks alike. An updated engineered mesh upper improves breathability, while the redesigned heel collar adds step-in comfort and security. Finished with Altra’s Standard FootShape™ fit, the Experience Flow ST gives your toes room to move naturally while keeping the midfoot locked in for confidence on the road. DETAILS: Use: Running and walking Cushion Level: Mid-cushion Surface: Road, trail Drop: 4mm Stack Height: 32 mm heel / 28 mm forefoot Weight: Women’s: 7.36 oz / 208.7 g