Keg Koozy as non direct fired Mash Tun Insulator

What do you guys think of using this "Keg Koozy" for insulating my non direct fire mash tun. It's made of Neoprene and has a zipper for easy cleaning and removal and it's supposed to keep the keg cold for 6 hours. I can imagine it would be as good keeping heat in. Neoprene is good to 230* F steady state exposure and 250* intermittent exposure. You can get it without the logo on it. So what do you guys think? It looks as it should work.




http://thekegkoozy.com/

it should work just fine. Probably easier to work with on a HLT than the foil stuff I see alot of people using. I am not aware of the thermal insulation that this offered compared to other products though.