Forty Below Bottle Boot
0.5 Liter size
The Forty Below® Bottle Boot™ 0.5 Liter/16 oz. size is an insulating water bottle cover. It keeps water from freezing, especially in extreme cold environments.
UPDATE August 2021:
Temporarily out of stock. Sorry!! Please contact us if you would like to be notified as soon as they are back in stock.
Please see below for additional information.