Reef Phantoms II Men's Flip Flop Let the Reef Phantom II flip-flops accompany you on your next getaway with water-friendly synthetic strap uppers and soft, padded jersey lining. Beach sandals feature air-mesh lining and contoured, compression-molded EVA footbeds with anatomic arch support for all-day comfort. Molded, high-density EVA outsoles for durable wear and grippy performance.