Forty Below Bottle Boot
1.0 Liter size
The Forty Below® Bottle Boot™ 1 Liter size is a high performance insulated bottle cover and holder that helps keeps water from freezing, especially in extreme cold environments.
New Update July 12, 2021 TEMPORARILY OUT OF STOCK. SORRY!!
More will be back in stock on July 27th, please check back then to order!
It fits perfectly on the Nalgene 32 oz. bottles and the 40 Below Cold Weather Water Bottle. Our 6 sizes of bottle covers have been used on the world’s coldest and highest places, since the 1970’s!
Please see below for additional information and specifications.