Big Agnes Mummy Bag

With a temperature rating of 20°F, this bag is designed for cool to cold conditions. It uses synthetic insulation that retains heat well, making it a reliable choice for late autumn or early spring trips.

Unlike down, the Fireline™ PRO Eco synthetic insulation maintains its loft and insulating properties even when damp. Combined with the PFC-free water-repellent coating on the shell, it offers peace of mind in humid or unpredictable weather.

The traditional mummy shape is designed to maximize heat retention by minimizing dead air space around your body. While it is more form-fitting than a rectangular bag, the contoured hood and two-way zipper allow you to adjust the fit and ventilation for better comfort.

This bag is designed for users up to 78 inches, or 6'6", in height. If you are near this limit, you may want to ensure you have a sleeping pad that provides adequate length to match.

You can spot clean the shell as needed, but for a full wash, use a front-loading washing machine on a gentle cycle with a technical gear cleaner. The exterior loops are specifically included so you can hang the bag to air dry completely before storage.

This model features a left-side zipper. Generally, Big Agnes bags are designed to be paired with others that have a compatible zipper side, but you should check the specific zipper configuration of your partner's bag to ensure they align correctly.