Spark Ultralight Mummy Sleeping Bag for Backpacking | Sea to Summit
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FREE SHIPPING & LIFETIME GUARANTEE. The Spark Ultralight Mummy Sleeping Bag Series spans everything from an ultralight down-filled liner to a
![](https://www.blackovis.com/media/catalog/product/cache/f024de0c6d075b60515a222a6c5a71cd/s/e/sea-to-summit-spark-28-degree-down-sleeping-bag-regular-1.jpg)
Sea to Summit Spark 28 Degree Ultralight Mummy Sleeping Bag
![](https://ae01.alicdn.com/kf/Sfec7b5a77f58481584188b431707a981r/AEGISMAX-Camping-Sleeping-Bag-700FP-Ultralight-Goose-Waterproof-Outdoor-Travel-Hiking-Mummy-Sleeping-Bags-Adult.jpg)
AEGISMAX Camping Sleeping Bag 700FP Ultralight Goose Waterproof
The Sea to Summit Spark SP0i 40F Sleeping Bag is an ultralight sleeping bag for warm weather adventures. The spark series Uses Responsible Down Standard (RDS) certified ULTRA-DRY 850+Loft premium goose down. The ULTRA-DRY water-repellent treatment virtually eliminates the negative effect moisture has on down. So, even if you hiked through a rain-storm your sleeping bag should still keep you warm and cozy.
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Sea to Summit Spark SPI - Sleeping Bag
![](https://c02.purpledshub.com/uploads/sites/47/2022/04/ASP2-R_SparkSP2SleepingBag_Regular_08-4996x3330-a3fcd5f-eb6f605.jpg)
Sea to Summit Spark SpII -2°c sleeping bag review
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Sea to Summit Spark Lightweight Down Sleeping Bag
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Flame Women's Ultralight Down Mummy Sleeping Bag
Sea to Summit Flame 25°F Ultralight Mummy Sleeping Bag for Ladies
![](https://www.rei.com/media/9f9cbbdd-65e7-496d-a529-08fcef5c41d3.jpg?size=784x588)
Sea to Summit Spark Ultralight Sleeping Bag Liner
Use the Sea to Summit Flame 48F Ultralight Mummy Sleeping Bag for Ladies as a fast-and-light sleeping bag or as a bag liner for colder camping trips. Women's-specific, contoured mummy shape increases the insulation's efficiency. RDS-certified, 850-fill-power ULTRA-DRY goose down insulation keeps you snug on nights down to 48F. Vertical chest baffles and sewn-through box baffle prevent cold spots.
![](https://seatosummit.com/cdn/shop/files/3BlockImages_Flame.jpg?v=1684337861&width=1500)
Sea to Summit Flame Womens Sleeping Bag (FMI) Regular
![](https://cdn.accentuate.cloud/images/24672501/STS_August_J.Fischer-04_600x600.jpg?v=1638390284238)
Spark Ultralight Mummy Sleeping Bag for Backpacking
![](https://d1nymbkeomeoqg.cloudfront.net/photos/20/90/330504_17528_XL.jpg)
Sea to Summit Spark SpI 40 Review
The Sea to Summit Spark SP0i 40F Sleeping Bag is an ultralight sleeping bag for warm weather adventures. The spark series Uses Responsible Down Standard (RDS) certified ULTRA-DRY 850+Loft premium goose down. The ULTRA-DRY water-repellent treatment virtually eliminates the negative effect moisture has on down. So, even if you hiked through a rain-storm your sleeping bag should still keep you warm and cozy.
![](https://seatosummit.com/cdn/shop/files/3BlockImages_Spark.jpg?v=1705091773&width=1500)
Sea to Summit Spark SPI - Sleeping Bag
![](https://seatosummit.com/cdn/shop/products/Adaptor-Coolmax-Liner-Insect-Shield-mummy-packed.jpg?v=1630349006&width=1500)
Adaptor Coolmax Sleeping Bag Liner with Insect Shield
Sea to Summit Spark 28° Ultralight Down Mummy Sleeping Bag
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