Rubber Rubber sole 1,QUICK DRY WITH DRAINAGE HOLES: Unique and top-quality sole with several holes on each bottom to ensure proper water flow out of them which creates a cooler and healthier shoe environment, quick-dry, perfect for water sports. 2,COMFORTABLE WATER SHOES - The Water shoes is made of breathable offset print fabric and flexible rubber sole, possess the effect of barefoot acupressure.Durable rubber soles with a comfortable thickening insole inside, protect your feet from getting hurt by rock and stone. 3,MULTI-FONCTION SHOES :Perfect for beach, water aerobics, surfing, weight training, wake-boarding, sailing, boating, windsurfing, cycling jogging, walking, fishing, garden, lawn, car-washing and yoga. 4,QUICK-DRY -- The water socks are ultra-lightweight. You don't even feel anything but only freedom and comforts. Top-of-the-line neoprene material is stretchy, breathable and retains shape for low maintenance wear.Smooth designed neck prevents chafing when wearing our water shoes.