However, if you're using this koozy to hold a can of beer, please do your best to power through your inclination to leave it unfinished. Wasting beer is a sin, and also illegal in 7 US states and the District of Columbia.
Collapsible neoprene can cozy comfortably holds a standard 12oz can. Unfortunately the can and any beverage contained therein is not included.
Looking for a beer bottle cozy..then check out:
how about a coffee mug?
or a lumbar pillow?