Our newest accessory, the Tracer Blaze sleeping bag liner, is incredibly soft and patterned to match our Ultralight Spoon(TM) shape contours for extra comfort and significant warmth on any overnight adventure. Tracer Blaze is made with thicker THERMOLITEA(R) EcoMade fabric, a material woven from 100% recycled yarns with hollow core fibers. These hollow fibers efficiently trap heat to extend the temperature range of your sleeping bag without adding bulk or excess weight to your pack. In addition to providing a physical layer that shields your bag from oils and sweat, Tracer is treated with PolygieneA(R) Odor Control Technology, an antimicrobial finish that inhibits odor-causing bacteria. By allowing users to extend the time between laundering, this bluesignA(R) approved odor-free finish protects a sleeping bag&&';;s performance and longevity while also reducing micro-plastic shedding into the water stream. Though Tracer is optimized for NEMO Ultralight Spoon bags (Riff(TM)), it can be used as a light yet warm layer inside any sleeping bag, from rectangle to mummy style. Features THERMOLITEA(R) EcoMade fabric with hollow core fibers offers unmatched warmth-to-weight heat retention. Made with 100% recycled yarns. POLYGENEA(R) antimicrobial finish extends time between laundering, increasing sleeping bag longevity and reduces micro-plastics in the environment. POLYGENEA(R) Odor Control antimicrobial finish is bluesignA(R) approved. Reduced washing saves water, energy, and detergent waste. Optimized for Ultralight Spoon(TM) sleeping bags but can be layered inside any bag. Packs into a tidy stuff sack equipped with drawstring and webbing handle for easy carry. Hardware-free for head-to-toe comfort. Specs Long / Blaze Capacity 1 Person Minimum Weight 0 lb , 13.6 oz / 386 g Packed Size 7.0 x 3.0 x 3.0 in / 18 x 8 x 8 cm ISO Comfort F / C Fill Type FP Color Vapor / Abyss Stuff Sack Drawstring stuff sack Specs Regular / Blaze Capacity 1 Person Minimum Weight 0 lb , 12.6 oz / 356 g Packed Size 7.0 x 3.0 x 3.0 in / 18 x 8 x 8 cm ISO Comfort F / C Fill Type FP Color Vapor / Abyss Stuff Sack Drawstring stuff sack