With the Rambler Colster, you'll never again have to suffer through a party with a cold hand and a warm beer. That's because we over-engineer the Colster to keep your drink as cold as science allows. It's load-and-lock gasket locks in the cold better than your flimsy neoprene pouch, and it secures your can or bottle firmly in place.
The Colster has double wall vacuum insulation to keep your drink frosty to the last sip, and to keep your fingers dry and un-frostbit and has a sweat free design. The Colster is made with heavy duty 18/8 stainless steel for maximum toughness. So the next time you find yourself at a tailgate, BBQ, deer lease, or backyard soiree, the Colster will make sure that the last sip you take is as cold as the first one.