The Spark Down Sleeping Bag packs RDS-certified 850+ fillpower goose down into an ultralight mummy with a technical hood and zipper draft tube.

Application

Gram-conscious backpacking and alpine trips. Ultralight mummy bag in 45°F, 30°F, 15°F, and 0°F. Regular and Long sizes; 15°F also offered as Double. Pick temp for your coldest planned night and size for height.

Key features

• RDS-certified 850+ fillpower goose down with non-PFAS Ultra-Dry Down treatment
• 10D nylon liner and 10D shell with non-PFAS DWR; water-resistant hood and footbox
• Technical hood, anatomical footbox, and ergonomic mummy shape
• Zipper draft tube to help retain warmth
• Temp ratings: 45°F, 30°F, 15°F, 0°F
• Sizes: Regular, Long, and 15°F Double

Shipping

Shipping cost and timing show at checkout. Oversize tents may ship as a larger parcel; sleeping bags typically ship as standard parcels.