The PAJAK Core 550 sleeping bag is engineered to offer the ideal balance of lightness, compressibility, and thermal performance in cold conditions.Filled with 550 g of 700 FP RDS-certified Polish white duck down, it ensures effective insulation for three-season use and even demanding winter outings.Its TORAY™ AIRTASTIC™ outer shell with SLF15 DWR treatment protects against moisture and wind while maintaining breathability.Weighing a total of 1100 g and compressing to just 5 L, it´s easy to carry and store.The EN 13537 certified temperature ratings are:comfort at 5°C, limit at -3°C, and extreme at -8°C.An excellent choice for mountaineers who need a compact and efficient sleeping bag without sacrificing warmth during colder nights .