Cheap Australian thongs/Flip Flops known as double plugas for the 2 plugs visible on the sole of the thong.
Authentic Double Plugas also have dragon's moulded into the straps of the thong.
Various colours of the thongs have different meanings around building sites and are worn by different authorities
Black - Worker
Blue - Supervisor
White - Manager
Green - HSE Manager
Red - CEO (Extremely rare to find, generally this person isn't a CEO but they've searched all of Aus hard enough to find them to deserve the title)
"Mate lets go"
"Hold on I've just got to put me double plugas on"