If you're counting grams, but still count on a great night's sleep, the Spark may be the right bag for you. Filled with RDS-certified 850+ fillpower goose down treated with a non-PFC Ultra-Dry Down treatment, the Spark is constructed with a technical hood and zipper draft tube to retain warmth. Comfort comes from a super-breathable 10 denier liner fabric, while a 10D shell with a non-PFC DWR plus a highly water repellent hood and footbox fabric shed wind and condensation. The full-length zipper model can be zipped to an equivalent Women's Spark for comfort that couples can share.
RDS-certified, 850-fill-power goose down with a non-PFC Ultra-Dry Down treatment for maximum thermal performance
10-denier shell with PFC-free durable water repellent (DWR) finish keeps the hood and footbox highly water-resistant
Ultralight, breathable 10-denier nylon lining
Technical hood, anatomic footbox and an ergonomic mummy shape—ultralight doesn't have to mean ultratight
Hybrid construction has box baffles in the torso and sewn-through in the leg area
YKK #5 zipper with zipper plow provides reliable, snag-free operation
Sea to Summit Guarantee is offered for the lifetime of this sleeping bag
Gender: Unisex
Color: Beluga Black
EN Temp Rating: 30 F / -1 C
EN Comfort (Women's) Rating: 39 F / 4 C
Bag Length: Regular: fits users up to 6 ft 1 in / 185 cm. Long: fits users up to 6 ft 6 in / 198 cm
Weight: Reg: 1 lb 1.4 ozLong: 1 lb 2.9 oz
Fill Weight: Reg: 9.3 ozLong: 10.8 oz
Circumference at Chest: Reg: 61 in. Long: 65 in
Circumference at Hips: Reg: 53 in. Long: 57 in
Circumference at Foot: Reg: 40 in. Long: 44 in
Compressed Volume: Reg: 4.5 L. Long: 5.1 L
Insulation: RDS certified, 850+ PFC free Ultra-Dry Down
Fabric: 10D nylon liner and 10D shell
Description
Delivering Warmth While Minimizing Weight
If you're counting grams, but still count on a great night's sleep, the Spark may be the right bag for you. Filled with RDS-certified 850+ fillpower goose down treated with a non-PFC Ultra-Dry Down treatment, the Spark is constructed with a technical hood and zipper draft tube to retain warmth. Comfort comes from a super-breathable 10 denier liner fabric, while a 10D shell with a non-PFC DWR plus a highly water repellent hood and footbox fabric shed wind and condensation. The full-length zipper model can be zipped to an equivalent Women's Spark for comfort that couples can share.
Details/Features
RDS-certified, 850-fill-power goose down with a non-PFC Ultra-Dry Down treatment for maximum thermal performance
10-denier shell with PFC-free durable water repellent (DWR) finish keeps the hood and footbox highly water-resistant
Ultralight, breathable 10-denier nylon lining
Technical hood, anatomic footbox and an ergonomic mummy shape—ultralight doesn't have to mean ultratight
Hybrid construction has box baffles in the torso and sewn-through in the leg area
YKK #5 zipper with zipper plow provides reliable, snag-free operation
Sea to Summit Guarantee is offered for the lifetime of this sleeping bag
Specs
Gender: Unisex
Color: Beluga Black
EN Temp Rating: 30 F / -1 C
EN Comfort (Women's) Rating: 39 F / 4 C
Bag Length: Regular: fits users up to 6 ft 1 in / 185 cm. Long: fits users up to 6 ft 6 in / 198 cm
Weight: Reg: 1 lb 1.4 ozLong: 1 lb 2.9 oz
Fill Weight: Reg: 9.3 ozLong: 10.8 oz
Circumference at Chest: Reg: 61 in. Long: 65 in
Circumference at Hips: Reg: 53 in. Long: 57 in
Circumference at Foot: Reg: 40 in. Long: 44 in
Compressed Volume: Reg: 4.5 L. Long: 5.1 L
Insulation: RDS certified, 850+ PFC free Ultra-Dry Down
Fabric: 10D nylon liner and 10D shell
Guide Pick
"I have been blown away by the Sea to Summit Spark. This brand has really stepped it up making a well thought out, extremely packable sleeping bag." - Joey Manship, RMI Expeditions Guide
Trust the experts
How Guide Pick™ Works
Step 1
The guides over at RMI collectively spend over 10,000+ days a year on the world's highest mountains, climbing hundreds of thousands of vertical feet. They put their gear and apparel through the wringer. This stuff is their work wear and they simply will not tolerate inferior gear.
Step 2
At the end of the climbing season, guides are given a survey to find out what gear they are using and why it is their favorite. We don’t often get complete agreement but we do get alignment and by looking at the data, a few clear winners rise to the top in each category.
Step 3
We take those winners, and stamp them with the Guide Pick™ logo on our site. We also compile this wonderful little document, which you can use to see top contenders, gear advice, Guide Quotes, and more.
