How to Choose Sleeping Bags for Backpacking
Sea to Summit Traveller 45F Down Sleeping Bag
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A warm bag that packs down small, the Sea to Summit Traveller 45F down sleeping bag has a full-length zipper and shoulder and footbox drawcords to get your sleeping temp just right.
Shop similar productsKey Details
Fill
650+ fill-power duck down
Temperature Rating (F)
45 degrees (F)
- RDS-certified, 650+ fill-power duck down with a non-PFAS Ultra-Dry Down treatment to stay drier in damp conditions
- Recycled 20-denier polyester shell with a non-PFAS durable water repellent (DWR) finish
- 20-denier polyester liner for pure comfort
- Full-length zipper and footbox drawcord can be opened for ventilation or to turn the Traveller into a quilt
- 2 Travellers can be zippered together
- Shoulder drawstring allows you to cinch the bag closed when temperatures are cooler than expected
- Stuff sack included
- Sea to Summit Guarantee is offered for the lifetime of this product
Imported.
Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.
Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
View all Sea to Summit Backpacking Sleeping BagsEach bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 45 degrees (F) - ISO |
| Tested Comfort | 51 degrees (F) - ISO |
| Temperature Rating (F) | 45 degrees (F) |
| Temperature Rating (C) | 7 degrees (C) |
| Ultralight | Yes |
| Shell | 100% RCS recycled polyester |
| Zipper Location | Left |
| Insulation Type | Down |
| Water-Resistant Down | Yes |
| Fill | 650+ fill-power duck down |
| Sleeping Capacity | 1-person |
| Lining | 100% RCS recycled polyester |
| Sleeping Bag Shape | Mummy |
| Stuff Sack Size | 11.4 x 6.7 x 4.3 inches |
| Stuff Sack Volume | 5 liters |
| Gender | Unisex |
| Sustainability | Down certified to the Responsible Down Standard (RDS) |
