Forty Below Bottle Boot 1Liter
Article number 151dbb1.0-Royal Blue
Lightweight, simple, and warm, this bottle cover is designed to be the lowest-profile and lightest product on the market to keep your liquid water unfrozen in the coldest climates. Time-Tested on expeditions worldwide for over 30 years!
Fits most 1 Liter/32oz. quart size water bottles, such as Nalgene, Hunersdorf, etc.
Helps keep liquids from freezing in cold conditions
Helps keep liquids cool in warm conditions
Low Profile Design
Thick 6.5mm Closed Cell Neoprene foam insulation
Velcro front closure: no zippers to break or freeze
Webbing belt loop and
Also available to fit 1.5 liter water bottles
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