Stretchy polyester liner boosts sleeping bag warmth with strong moisture-wicking action. Weighs just 16oz and packs down to 7x4 inches. Includes stuff sack.
The Thermalon Liner is a practical solution for anyone looking to maximize their sleeping bag's thermal efficiency without investing in a heavier bag. This stretchy knitted liner works by creating an insulating air layer between you and your bag, significantly boosting warmth retention in cooler conditions.
Whether you're extending your three-season bag into late fall, adding warmth on high-altitude trips, or simply preferring a moisture-wicking layer against your skin, the Thermalon Liner delivers measurable thermal benefits. The stretchy fabric conforms to your body without bunching, ensuring consistent insulation throughout the night.