Big Agnes Women's Anthracite 20°

The Big Agnes Women's Anthracite 20 is a women's-specific mummy sleeping bag rated to 20F, insulated with FireLine Pro Eco, a recycled synthetic fill rather than down. Synthetic insulation keeps performing when damp, which matters on trips where condensation or humidity is likely, at the cost of being bulkier and heavier per unit of warmth than an equivalent down bag - at 1389 g, this is a noticeably heavier bag than a down mummy rated to the same temperature. The shell uses a PFC/PFAS-free water-repellent treatment, and both the fill and outer materials are recycled, which suits hikers who weigh environmental footprint alongside performance. It's cut with women-specific sizing and offered in Regular, Long or Wide Long, addressing fit through the shoulders and hips rather than just overall length. Given its weight, this is a bag for car camping, base-camp trips or hikers who prioritise reliable warmth over shaving grams, not for ultralight backpacking.