Worn once. Men’s size 7.5 womans 9100% LeatherImportedRubber soleShaft measures approximately Ankle from archHeel measures approximately 0.5"Injected EVA foam upper is more water-friendly & more durable than others of its kind External rear heel sling BLOOM performance midsole foam is made of 10% algae biomass, transforming green water into clean water in the process FloatPro Foam midsole for a lightweight ride that lasts