- Gear
- Sleep Systems
- Spark 45F Down Sleeping Bag
Features
- RDS-certified, 850+ fill-power goose down with a non-PFAS Ultra-Dry Down treatment for maximum thermal performance
- 10-denier shell with a non-PFAS durable water repellent (DWR) keeps the hood and footbox highly water-resistant
- Ultralight, breathable 10-denier nylon liner
- Constructed with a technical hood and zipper draft tube to retain warmth
- Technical hood, anatomic footbox and an ergonomic mummy shape—ultralight doesn't have to mean ultratight
- Sewn-through baffle construction for lighter weight
- YKK #5 zipper with zipper plow provides reliable, snag-free operation
- Half-length zipper for ultralight packability
- Sea to Summit Guarantee is offered for the lifetime of this product
Technical Specs
- Fill850+ fill-power goose down
- Shell10-denier nylon
- GenderUnisex
- Lining10-denier nylon
- Weight12.8 ounces,13.7 ounces
- Best UseBackpacking
- Top RatedYes
- Fill Power850
- UltralightYes
- Weight (g)363,387
- Fill Weight5.3 ounces,6.1 ounces
- New ArrivalYes
- Member OffersJust for Members
- SustainabilityDown certified to the Responsible Down Standard (RDS)
- Tested Comfort51 degrees (F) - ISO
- Hip Girth (in.)61 inches,65 inches
- Insulation TypeDown
- Zipper LocationLeft
- Fits Up To (in.)73 inches,78 inches
- Compressed Volume2.4 liters,2.9 liters
- Sleeping Capacity1-person
- Stuff Sack Volume2 liters,3 liters
- Sleeping Bag ShapeMummy
- Tested Lower Limit45 degrees (F) - ISO
- Shoulder Girth (in.)61 inches,65 inches
- Water-Resistant DownYes
- Temperature Rating (C)7 degrees (C)
- Temperature Rating (F)45 degrees (F)