Rugged Shark Aqua G3 Slip on Lightweight Athletic Shoe Synthetic Synthetic sole ALL DAY COMFORTABLE: The stretch-bungee keeps your foot snug in the shoe. Step into this shoe and you can feel the comfort in a cushioned molded footbed. It cushions your feet, and helps absorb any shock. BREATH-ABLE: Keep your feet from getting sweaty with genuine nylon mesh that allows air-flow in to keep feet cool. DURABLE CONSTRUCTION: This slip-on hybrid athletic-watershoe has a synthetic stitched piece at the toe and reinforcements along the sides for durability in and out of the water. CUSHIONS YOUR FEET: These shoes are super lightweight with a soft outsole -- the portion that touches the ground -- in a light but spongy EVA material. Perfect for happy feet! FEATHER LIGHT: Stay light on your feet with these slip-on trainers. They are Extremely Lightweight, at less than 12 ounces per pair.