Featuring SpiraFil high-loft insulation, this mummy-style sleeping bag retains the exceptional warmth, softness, and compressibility of a natural down bag, with the added moisture resistance that comes with synthetic insulation. It is also EN rated as comfortable for men to the lower limit of approximately 30 degrees Fahrenheit. blanket-like feel on the bottom—keeping your body in comfort all night long.

• high-loft insulation for maximum warmth and durability

• Combination wave construction

• Full-length, locking YKK two-way zipper

• Fold-down secondary zipper for added ventilation and easy access

• EN tested for reliable performance