KELVIN AEROLITE 30 SLEEPING BAG The Kelvin Aerolite 30 Sleeping Bag is a multifunctional layer for active time in camp, cold glassing sessions or dreaded midnight nature calls. Synthetic PrimaLoft Gold Insulation with Cross Core technology replicates the aesthetics and performance of down insulation, but with warm-when-wet performance. Featuring a 30-degree comfort rating, it’s designed to be an extension of your SITKA clothing systems for full-season performance, even in the wettest conditions. Jacket-like features include zippered, functional armholes; contoured shoulders and hood, and a center-front two-way zipper. FEATURES: - Reg: up to 6' - Long: up to 6'6" - Total weight: 38 oz. - Synthetic PrimaLoft Gold Insulation with Cross Core technology - Lightweight insulation - ISO 23537, 30-degree comfort rating; designed to be worn with other layers in your SITKA clothing system for colder conditions - Stowed hook at bottom of bag - Contoured shoulders and hood - Armholes positioned for functional mobility - Shaped footbox - 20-denier polyester face and backer - Center-front two-way zipper WHY WE MADE THIS We took experience and insights designing clothing systems and applied that knowledge to the sleeping bag, turning something you typically use just for sleep into a multifunctional tool for backcountry use.