The Forty Below® Bottle Boot™ is the perfect insulating bottle cover to help keep your water and beverages in a liquid state for all of your cold weather trips and expeditions.
The unique design enables the user to easily open and hold onto with mittens or gloves, with easy access to the bottle, and no zippers to break or freeze and the low profile, non bulky design takes up less room in your pack and less bulk when on a backpack hip-belt.
This 1 Liter size fits Nalgene 32oz. bottles.
Weight: 4.5 oz / 126g