The Aura sleeping bag series offers lightweight, compactable sleeping with premium thermal efficiency. The Aura features synthetic TechLoft Micro insulation consists of multiple denier staple-length fibers that have a siliconized finish for maximum insulation, loft, and compactness. Two-layer construction and the contoured hooded mummy shape help maximize warmth on chilly nights. The Aura also boasts an insulated chest and zipper baffle to combat heat loss. Comfort and durability are provided with a high-quality nylon ripstop shell and soft polyester liner.