The Trestles collection consists of Marmot's best-selling sleeping bags, and the Trestles Elite model is Marmot's most advanced option for consistent campers. The Women's Trestles Elite Eco 30 Sleeping Bag boasts the same features as the Trestles Elite, except Marmot made it environmentally friendly materials without sacrificing performance. Its HL-ElixR Eco insulation maintains a solid 30F temperature rating, and Wave construction amplifies loft under the bag to ensure warmth under your body. The hood and footbox have a snug 3D-shaped design for snug coverage that works with the draft tube so you don't feel a chill seep through in the middle of the night.