A great all-around backpacking sleeping bag for spring, summer and fall, the women's synthetic-fill Mountain Hardwear Petaluma is built for comfort and warmth without constriction. FILL. Thermal Q. WEIGHT. Long - Right Zip: 3 lbs. 5 oz. Regular - Right Zip: 3 lbs. 1 oz. COMPRESSED VOLUME. Long - Right Zip: 8.1 liters. Regular - Right Zip: 7.3 liters. TEMPERATURE RATING (F). 20 degrees (F)

• Thermal.Q synthetic insulation provides a European Norm (EN) comfort rating down to 31°, making the Petaluma ideal for 3-season backpacking
• Women-specific bag is cut to match a woman's shape, and provides extra insulation and warmth in the hood and feet areas
• Offset quilt construction means no sewn-through seams and no cold spots
• Tailored hood with face gasket forms around head to seal in heat
• Comfort footbox allows feet to rest naturally, angled out slightly with toes pointing, while fully preserving insulation loft for maximum warmth
• Insulated draft tube (backing the 2-way, full-length zipper) and insulated zipper gusset seal in heat
• Note: EN is an independent third-party temperature rating, allowing accurate comparisons across brands with other EN-rated bags