THESE SANDALS ARE CALLED "THE ORIGINAL TOPLESS SANDAL." "DOWN-UNDERS" WERE INVENTED IN AUSTRALIA. THEY "STICK" TO YOUR FEET WITH A SPECIAL ADHESIVE THAT IS REUSABLE OVER AND OVER. THERE IS NOTHING ON TOP OF THE SHOE .... NO STRAPS, THONGS, ETC. THE ONLY THING KEEPING YOUR FEET ON THEIR SURFACE IS THE STICKY FOOTBED. THIS PACKAGE IS NEW, NEVER OPENED. THEY ARE UNISEX.