Purchased at Montbell in January 2026. It is brand new and unused, having never been removed from its bag. Product Information A lightweight sleeping bag combining high-quality 800FP EX down with a water-repellent, ultra-lightweight shell material. It features the innovative "Spider Baffle System," which eliminates baffles to prevent down from shifting. This model offers excellent overall balance, suitable for year-round use from high mountains in summer to low-altitude camping in winter. Specifications [Material] Fabric: 10-denier Ballistic® Airlight® Nylon Taffeta [Water Repellent] Insulation: 800FP EX Down [Weight] 531g (555g) *The weight in parentheses in the [Weight] field includes the stuff sack. [Color] Blue Green (BASM) [Size] L/ZIP (Left Zipper) [Storage Size] Φ13×26cm (3.0L) [Compatible Height] Up to 183cm [Comfort Temperature] 4℃ [Lower Limit Temperature] -1℃ [Features] Zipper length 170cm / Can be joined with compatible models / Zipper slider equipped with a part to reduce fabric snagging / Super Spiral Stretch System (internal: maximum stretch 135%)