From Ryka, the Women's Hydro Sport Mesh Water Friendly Sneakers feature: Quick-drying, chlorine-friendly mesh upper with faux leather overlays for extra durability Anti-chlorine upper materials resist fading Water friendly shoe for water fitness and outdoor water activities Multi-port drainage system Back pull tab Toggle lacing system for easy on/off Padded collar for extra cushioning Removable cushioned Nitracel insole with drainage holes Exceptional built-in support under the midfoot Lightweight EVA midsole for soft cushioning with draining holes. Drainage system in outsole Sticky rubber sole for extra traction on wet surfaces WEIGHT: 239 g/8.4 oz per shoe HEEL-TO-TOE DROP: 12 mm. Imported.