Could this stainless-steel TherMax insulator outcool a foam koozie? To find out, I chilled two beers to a frosty 36 degrees and monitored their temperatures, one in a foam koozie and one in the stainless-steel TherMax with the bottle collar included. Two hours later the beer in the foam koozie was a lukewarm 56 degrees, the beer in the TherMax insulator a drinkable 51. I poured the foam-koozie beer out. Swap for the included beer-can collar when needed. And they won’t blow out of the boat. $16.99; chillingthemost.com
