Quiksilver Mens Travel Thongs (Black)product: sandal water friendly vegan nubuck upper tubular no edge toe post with memory foam silky spacer mesh liner backed with foam for comfort and breathability anatomically contoured hydrobound footbed for long lasting comfort and wearability travel loop built into the midsole sits flush against heel of sandal or can be stretched to loop through the included carabiner for clipping sandals together and to a backpack, boardbag, etc. re engineered gum