Sea to Summit Spark 45°F Ultralight Down Sleeping Bag – Long
Lightweight warmth for backcountry adventures The Sea to Summit Spark 45-Degree Ultralight Down Sleeping Bag is engineered for warmth, lauded...
Vendor:
Sea to Summit
Product type:
Sleeping Bag
- $755.29
- $755.29
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Description
xLightweight warmth for backcountry adventures
The Sea to Summit Spark 45-Degree Ultralight Down Sleeping Bag is engineered for warmth, lauded by backpackers who prize a nimble pack and a natural sleeping position. Ideal for cool-weather backpacking, bike packing, and touring, this mummy-style bag keeps cold at bay while staying compact enough for fast-paced trips. The combination of premium insulation and a minimal shell lets you move lighter without sacrificing comfort on crisp nights.
Warmth, insulation, and moisture resilience
- 850+ fill power down insulation (RDS certified) with a proprietary non-PFC Ultra-Dry down treatment to help loft and warmth stay strong when conditions mix moisture and wind
- Ultralight 10D nylon shell and liner with a DWR finish offer weather resistance and breathability without adding bulk
- Contoured mummy shape provides room for a natural sleeping posture while minimizing heat loss
- Sewn-through construction keeps weight down and enhances packability
Packability, fit, and practical details
- Left-side YKK #5 zipper delivers reliable, snag-free entry and a streamlined opening
- Quasi-compact form supports efficient packing and quick setup after a long day on the trail
- Includes an Ultra-Sil compression sack for compact storage and a storage cube for organized packing
- Available in Regular and Long to accommodate up to 6'0" and 6'6" respectively
Why choose Spark for your next adventure
The Spark is designed to balance warmth and ultra-lightweight design, making it a strong option for hikers, cyclists, and touring enthusiasts who prioritize agility and reliability. Sea to Summit offers a lifetime product guarantee, reflecting confidence in the bag’s construction and materials for the long haul. While it is not a guarantee of performance in every environment, the features are chosen to help you stay comfortable when conditions are cool and pack space is at a premium.
FAQ
Q: What is the warmth rating of the Spark Ultralight Down Sleeping Bag and when is it best used?
A: Rated for 45°F comfort, it suits cool nights on backcountry trips, bike packing, and touring.
Q: What features aid moisture resistance and packing efficiency?
A: 850+ fill power RDS-down with Ultra-Dry treatment helps loft; includes Ultra-Sil compression sack and a storage cube for organized, compact packing.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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