Sea To Summit Spark Pro Sleeping Bag: 15F Down Beluga Black, Long

What Our Gearhead(R) Experts Are Saying: "Serious warmth for its weight.

The down loft is impressive, and it still compresses into a true 'small' in my pack."We chase shoulder-season summits with the Sea to Summit Spark Pro 15F.

High-loft down, heat-trapping baffles, and a streamlined cut boost warmth without taxing pack space.

Draft-blocking details and a cozy hood help seal the deal when mountain nights bite.