REEF Fanning Slides Olive Mens Sandals Bottle Opener Flip Flops Size 12 New with Tags Reef's easy on, easy off slide with a bottle opener in the sole of the sandal. They are handcrafted with a comfortable footbed and anatomical arch support. Shock absorbing men's sandals with contoured compression molded EVA foam footbed and 360 degree heel airbag enclosed in soft polyurethane.