The Trestles Elite Eco 0 Sleeping Bag: 0 Degree Synthetic is a fully recycled version of one of the most popular synthetic bags on the market, which also happens to be Marmots top of the line synthetic bag, the Trestles Elite. The Eco does not skimp on warmth, comfort, or pack-ability despite the recycled products. The HL-ElixR Eco insulation traps body heat with impressive loft, retains loft when wet to keep you warm, and packs down to a compact and lightweight size. Additionally the ripstop outer can handle abrasions and normal wear and tear, while the soft taffeta lining makes sure the bag is comfortable next to skin. This 0 degree rated bag is a great option for shoulder season camping in mountainous areas or as a car camping pack for mid winter nights spent at trail heads. Weighing in at over 4 pounds in the long and just under 4 pounds in the regular allows this pack to be used on shorter backpacking missions or weekend camping with ease.