Sea to Summit Spark Women's UL Down Sleeping Bag 45F
- 45F (7C) rating
- 850+ fill power RDS down with Ultra-Dry treatment
- 14.4 ounces weight
- Max user height 67 inches
- 10D nylon shell with PFC-free DWR
- Lifetime warranty against defects
Updated 20 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A very light women's down bag for warm-weather backpacking and bikepacking, shaped to put warmth where it is needed. It is too light for cold nights.
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ASIN: B0CTD8927WCategory: Sleeping Bags
Overview
A woman backpacking in warm weather gets an ultralight mummy bag with a hood, zipper draft tubes and down chambers mapped to a woman's build. A shorter length, narrower shoulders and wider hips cut wasted space.
Women get a featherweight bag for summer trips with less dead air to heat. Sewn-through construction saves weight, which suits it to mild nights.
Who it's for
Summer backpacking, bike touring and warm hut trips suit this bag. Cold-weather campers need a warmer rating.
Pros and cons
- Very light for packing
- Treated down handles moisture
- Water-resistant hood and footbox
- Hood and draft tubes
- Warm weather only
- Sewn-through build favors low weight
- Stuff sack not listed
Performance notes
Warmth depends on the high-loft down and the women-specific cut, which reduces empty space to heat. Sewn-through baffles save weight, but the stitch lines carry less insulation.
Specifications
| Brand | Sea to Summit |
|---|---|
| Dimensions & fit | |
| Maximum Height Recommendation | 67 inches |
| Item weight | 14.4 ounces |
| Item Dimensions L x W | 71.3 x 28 inches |
| Capacity & performance | |
| Temperature Rating | 45F (7C) |
| Construction & materials | |
| Fill Material Type | 850+ fill power down, RDS certified, Ultra-Dry treated |
| ShellMaterial | 10D nylon, PFC-free DWR |
| Fabric Type | 10D nylon liner |
| Warranty & support | |
| Warranty Description | Lifetime guarantee against defects in materials or workmanship |
| Other details | |
| Shape | Broad mummy with hood |
| Closure Type | Zipper with draft tubes |
| Seasons | Summer |
Frequently asked questions
Who is the Spark Women's Regular sized for?
Users up to 67 inches, with a shorter length, narrower shoulders and wider hips.
Is the Spark 45F warm enough for spring camping?
It is rated to 45F (7C) and listed for summer use, so cold nights call for a warmer bag.