Marmot Women's Trestles Elite 20° Eco Sleeping Bag

The Marmot Women's Trestles Elite 20° Eco is a long-fit synthetic mummy bag (sized for users up to roughly 182 cm) insulated with HL-ElixR Eco recycled synthetic fill, built to Bluesign and PFC-free standards for a lower environmental footprint. EN ISO 23537 testing puts comfort at -7°C and the limit at -13°C, placing it in cold three-to-four-season territory. At 1326 g and a warmth-to-weight ratio of 9.8 (about 102 g per degree), it's notably more weight-efficient than Marmot's other synthetic-filled women's bags, thanks partly to horizontally oriented shingled baffles that reduce cold spots without added bulk. A 3D anatomical hood, insulated draft tube, and footbox ventilation address the usual synthetic-bag drafts and overheating, while the full-length left-side two-way zipper and included stuff sack plus storage sack cover handling and storage. For hikers who want wet-weather-reliable synthetic insulation without the usual weight penalty and need the longer cut, this suits cold three-season backpacking and shoulder-season trips.