• Forty Below Insulated Bottle Boot 48oz front view red with white logo white background
  • Forty Below Insulated Bottle Boot 48oz back view red with black webbing hip belt on a white background
  • Forty Below Insulated Bottle Boot 48oz front view assorted colors with white logo white background
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Forty Below

Forty Below® Bottle Boot™ 48oz

Forty Below® Bottle Boot™ 48oz

$39.95 USD
$39.95 USD
Sale Sold out
Shipping calculated at checkout.
Color: Red
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The Forty Below® Bottle Boot™ is an insulating bottle cover designed to slow the freezing of water bottles in extremely cold environments.

The 48 oz size primarily fits the Nalgene Brand 48 oz tall water bottle. Other compatible bottle options include 32 oz stainless vacuum bottles (REI, GSI), 40 oz Hydro Flask, 40 oz Kleen Kanteen, 32 oz Nalgene Flexible Canteen, and other similar styles of bottles.

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.

  • Key Features

    • Fits the Nalgene Brand 48 oz tall water bottle and other similarly sized bottles.
    • Significantly slows down 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

  • Product Specs

    • Insulation: 1/4″ (6.5mm) thick stretchy nylon covered closed cell foam (wetsuit type material). Uniform thickness.
    • Size: Fits Nalgene 48oz water bottle, Nalgene 32oz and 48oz Flexible Canteen, 32oz vacuum bottle/thermos, 32-40oz Hydro Flask, 32-40oz Kleen Kanteen, etc.
    • Fits: Bottles up to 3.5 inches in diameter and 12.5 inches tall. Stretchy material allows for some flexibility with different shapes of bottles.
    • Colors: Red, Royal Blue, Black, Green, Purple, Desert Tan, Yellow, Pink
    • Weight: 6.5 oz (182g)
    • 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.

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