The Forty Below® Bottle Boot™ 1 Liter/32oz. quart size, is a very insulating water bottle cover, to help keep water from freezing, especially in extreme cold environments. Used on expeditions worldwide for over 3 decades. This insulated bottle cover is a unique design that enables the user to easily open with mittens or gloves, with easy access to the bottle, and no zippers to break or freeze.
- 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.
- No zippers to break or freeze.
- Webbing belt loop.
- Velcro front closure.