This is a fun product from Kegland. 

JetKeg Pack Includes:
1 x JetKeg Back Pack
1 x Black Nylon Pluto Gun (duotight compatible)
1 x 6.5mm x 8mm duotight reducer (for pluto gun)
1 x PreCut length of 4mm x 8mm EVABarrier Hose

Does not include regulator, gas fittings or disconnects/coupler or man with beard.

You will also want a black disconnect and 5/16" (8mm) fitting (not included) to get the pluto gun working.

From Kegland:

The JetKeg is an exclusive KegLand product that enables you to walk through a crowd and dispense a whole keg in far less time than what it would take for each person to come up to the bar.  It's a backpack designed to dispense and keep a keg cold.

Great for parties, public events, caterers, or any even that requires many drinks to be dispensed in a short period.

Ever been to a music festival and wanted to take your awesome kegged product but cant be bothered luging around all the gear.  The JetKeg solves this problem.  Turn up to the event with one of these and you will be an instant legend.

This product has been designed with durable buckles, strong nylon straps, waist strap and fully hot tape seamed internal lining that is waterproof so no dripping water all over the floor.