Big Agnes Anthracite 20°

The Anthracite 20° is a conventional synthetic mummy bag rather than an ultralight piece: FireLine Pro Eco recycled insulation is arranged in a shingled baffle pattern, a construction method aimed at reducing cold spots along the seams that a simple sewn-through design would create. Ratings run 0°C comfort / -6°C limit / -23°C extreme, and total weight is 1,244g for a regular-length bag rated to 182cm user height, packing down to roughly 23x23cm. The two-way YKK zipper allows venting from the foot end on warm nights, and it pairs with an adjustable, contoured hood and a draft collar for cold ones. Shell and lining are both recycled polyester with a PFAS-free DWR finish, and two bags can be zipped together for couples. None of this is aimed at minimizing pack weight — at over 1.2kg it sits well above ultralight quilts with similar ratings — but synthetic fill keeps performing if it gets damp, and the price point is typically lower than comparable down bags. Good fit for car camping, cabin-adjacent trips, or backpackers prioritizing reliability and budget over grams.