Forty Below Bottle Boot
1500ml size
(Does Not fit the tall Nalgene 48oz. See below for that model)

Quick Overview

The Forty Below® Bottle Boot™ 1500ml size. It only fits the Cold Weather Bottle in the 1500ml size.  It does not fit the Nalgene 1.5 quart (48oz.)  We do make a different model to fit that bottle also, please see the 48oz. Bottle Boot model in our lineup (see link below).

It is an insulating water bottle cover that helps keep slow down the water from freezing quickly, especially in extreme cold environments. It is specifically made to fit the German design Cold Weather Bottle 1500ml size only.

Please see below for additional information.