Sea To Summit Womens Spark Down -1c Sleeping Bag

The Women’s Spark sleeping bag is built for serious adventurers who need reliable warmth in a lightweight, packable design. Its women-specific fit improves heat retention and comfort by matching natural body shape and insulation needs, while premium materials ensure excellent performance in cold and variable conditions. Treated goose down, technical fabrics, and thoughtful construction details make it a dependable choice for backpacking, hiking, and alpine travel where every gram counts.

Features:

• 850+ fill power RDS-certified goose down for high warmth-to-weight performance
• Non-PFAS Ultra-Dry Down treatment for improved water resistance and insulation reliability
• Women-specific ergonomic shape for better thermal efficiency and comfort
• Ultralight 10D nylon shell and liner for minimal pack weight
• Breathable construction for improved sleeping comfort in varying conditions
• Water-resistant hood and footbox with non-PFAS DWR coating
• Technical hood design to reduce heat loss
• Zipper draft tube to prevent heat escaping during sleep
• YKK #5 zippers with anti-snag “zipper plow” design for smooth use
• Zip compatibility with unisex Spark bags for increased versatility