Our Bestselling Phantom Flip Flop, Built For The Beach, Gets A Revamped Cushion Footbed, With Reef’S Signature High-Energy Rebound Footbed For More Cushioning In Every Step. Also With Heel Cupping And A High Density Rubber Outsole. Our Bestselling Phantom Flip Flop, Built For The Beach, Gets A Revamped Cushion Footbed, With Reef’S Signature High-Energy Rebound Footbed For More Cushioning In Every Step. Also With Heel Cupping And A High Density Rubber Outsole.