Altra Experience Flow 2 Running Shoes (For Men) Excess. Crush your next run in Altra's Experience Flow 2 running shoes, designed with a lightweight, breathable upper, molded EVA foam midsole for added cushioning and bounce and a grippy outsole. Engineered mesh upper with synthetic overlays Highly breathable Padded collar and tongue Lace closure Removable cushioned footbed Compression-molded EVA foam midsole Grippy rubber outsole Made in Vietnam