Big Agnes Women's Anthracite 30°

The Big Agnes Women's Anthracite 30° is a women-specific mummy bag using FireLine Pro Eco, a recycled synthetic insulation, paired with recycled shell and lining fabrics — a fully synthetic build rather than the down used in some of Big Agnes's other lines. A DWR coating free of added PFAS repels light moisture on the shell, useful for damp tent walls or condensation rather than sustained wet conditions. At 1134 g, it's a mid-weight synthetic bag, heavier than an equivalent down bag but more tolerant of humidity and simpler to wash and maintain. The mummy shape and women-specific cut trim excess material around the shoulders and hips for a closer, warmer fit than a unisex bag of the same rating. As its name suggests, this bag targets the milder end of three-season use rather than deep winter — appropriate for spring and autumn trips where its synthetic fill's damp-weather reliability matters more than raw warmth-to-weight.