Reef Dram Sandal: The Reef Dram Sandal eliminates the problem of carrying too much stuff to the beach. Instead of lugging a heavy cooler all the way from your car, these sandals let you keep your drink right in the heel of your shoe. That’s right – the polyurethane encapsulated canteen in the heel of these sandals opens with the included reef church key/fin key. Think that’s cool? We do too.