


The Forty Below® Bottle Boot™ is an insulating bottle cover designed to slow the freezing of water bottles in extremely cold environments.
The 1500 ml size fits the 1500 ml 40 Below Cold Weather Water Bottle, It does not fit the Nalgene 1.5qt/48 oz bottle. For a size that will fit, see the Forty Below 48 oz Bottle Cover!
Trusted for over 40 years, our bottle covers have been used worldwide on just about every type of outdoor trip, from winter day hikes to extremely cold, high altitude expeditions.
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Key Features
- Fits the 1500 ml 40 Below Cold Weather Water Bottle.
- Significantly slows liquids from freezing in cold conditions
- Also keeps liquids cool in warm conditions!
- Velcro front closure with Grab-Tab - Easy to use with mittens or gloves
- No zippers to break or freeze
- Low Profile Design, packs small
- Does not absorb water
- Webbing belt loop
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Product Specs
- Insulation: 1/4″ (6.5mm) thick stretchy nylon covered closed cell foam (wetsuit type material). Uniform thickness.
- Size: Fits only the 40 Below 1500 ml Cold Weather Bottle
- Fits: Bottles up to 4 inches in diameter and 9 inches tall. Stretchy material allows for some flexibility with different shapes of bottles.
- Colors: Black, Yellow
- Weight: 5.5 oz (154 g)
- Handmade in China
The Bottle Boot™ name is a declared and used Trademark of Forty Below Ltd and is an original product and name that we invented, designed, manufacture, sell, and has been used around the world by us since 1980. Any use of the name: “Bottle Boot”, “Bottle Boots”, the design of the product, or trade dress is prohibited.
See it in Action
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