Guinness Beer Flip Flop Sandal Thong with Built -in Beer Bottle Opener On The Strap synthetic-and-fabric OFFICIAL GUINNESS MERCHANDISE - Officially licensed Guinness merchandise. Guinness Dublin Ireland official merchandise of Guinness CASUAL STYLING: Frayed edges on the cotton straps give you that cool well-worn look. Flexible toe thong will eliminate discomfort. PARTY ATTIRE: BUILT IN BOTTLE OPENER!!! Cool party conversation piece! Built-in bottle opener on left strap (as pictured) prepares you for any party. WARM WEATHER FASHION FOOTWEAR: Durable, comfy cotton straps and padded footbed add all-day comfort. Perfect for the beach, tailgating, or any warm weather activity. PERFECT GIFT FOR UNISEX -Thong styling offers on and off ease.