Spark Women's Down Sleeping Bag 15°F to 45°F Ultralight Backpacking Bag

For women who count every gram but refuse to give up comfort, the Women's Spark line carries Sea to Summit's 100% focus on a bag shaped around the body. Mapping that shape to a women's frame brings warmth without bulk. RDS-certified 850+ fillpower goose down gets a non-PFAS Ultra-Dry Down treatment for strong insulation, and a technical hood with a zipper draft tube stops heat from leaking out. The 10D liner breathes well, while a 10D shell with non-PFAS DWR and a highly water repellent hood and footbox fabric keep damp out. Couples can zip a full-length Women's Spark to a matching Unisex Spark for shared warmth.

Features

• RDS-certified 850+ fillpower goose down with a non-PFAS Ultra-Dry Down treatment for maximum thermal performance
• Ultralight, breathable 10D nylon liner and a 10D shell with non-PFAS DWR keep the hood and footbox highly water resistant
• YKK #5 zippers with a zipper plough for reliable, snag-free operation
• Women's specific fit: narrower shoulders for reduced weight and extra room between hips and knees for natural side sleeping
• Technical hood and anatomical footbox hold warmth without the cramped feel some ultralight bags have
• Baffle construction matched to each use: sewn through for lighter weight (7°C|45°F), hybrid box baffles in the torso with sewn-through legs (-1°C | 30°F), or full box baffles for maximum warmth (-9°C | 15°F)
• Sea to Summit Guarantee offered for the lifetime of this product