Big Agnes Anthracite FireLine Pro Recycled Sleeping Bag — Slate, 30°F, Left Zip, Regular

Overview

The Anthracite from Big Agnes is a lightweight mummy bag designed to deliver warmth and comfort on a range of adventures. Built with FireLine Pro Recycled insulation and a soft, recycled shell, it balances performance with sustainability for cool-night camping and fast-moving treks.

Why this bag stands out

• Lightweight yet warm performance ideal for backpacking and casual overnight trips.
• Contoured hood and oversized anti-draft collar help trap warmth while keeping a low profile for a comfortable sleep.
• Left-side zipper design supports easy entry and can be paired with a partner bag for close sleeping arrangements.

Inside, the soft fabric helps minimize friction against the skin, while a two-way anti-snag zipper makes it simple to air out your feet on warmer nights without fully exposing yourself to the breeze.

Materials and sustainability

• Shell and lining use soft, GRS certified recycled polyester for a cozy feel that’s easy on the environment.
• FireLine Pro Eco insulation is 100% post-consumer recycled polyester with high loft to trap heat and maintain shape for dependable compressibility.

The combination of recycled materials and thoughtful insulation yields a bag that aims to balance warmth, weight, and packability. The 30-degree rating is a guideline for cool-to-mature conditions, and the bag compresses down for transport while still offering room to shift positions at night.

Ease of use and packing

• Two-way, anti-snag zipper provides a smooth opening and the option to vent from the bottom on mild evenings.
• Includes storage and stuff sacks, plus exterior loops for hang drying or proper storage.

Specs to know: Regular length weighs 2 lb 2 oz, compresses to 8" x 9", and fits up to 6 ft (183 cm).