If you're counting grams, but still count on a great night's sleep, the Sea to Summit® Spark 0° Down Sleeping Bag is the sleeping bag for you. This Sea to Summit sleeping bag is filled with RDS-certified 850+ fill power goose-down insulation treated with Ultra-Dry Down, while a technical hood and zipper draft tube prevent precious warmth from escaping. A super-breathable 10-denier nylon liner rounds out the comfort profile, and a 10-denier nylon shell with a durable water-repellent (DWR) finish combined with highly water-repellent hood and foot box material keep moisture out. Couples can zip the full-length zipper to an equivalent women's Spark for extra comfort and thermal efficiency.

• Durable, breathable nylon construction
• 850+ fill power goose-down insulation with Ultra-Dry Down
• Technical hood and zipper draft tube prevent warmth from escaping
• DWR finish sheds moisture
• Full-length zipper can connect with women's Spark bags

Specs:

Regular

• Fits up to 6'1"
• Shoulder Circumference: 61"
• Hip Circumference: 53"
• Ankle Circumference: 40"
• Temperature Rating: 0°F
• Weight: 2.46 lbs.