How to Choose Sleeping Bags for Backpacking
Sea to Summit Traveller TrII 30 Sleeping Bag/Blanket
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Both a blanket and sleeping bag, the Sea to Summit Traveller TrII 30 is great for backpacking, summer bike tours, hut trips, couch surfing—or just being stuck at the airport.
Shop similar productsKey Details
Fill
Ultra-Dry 750+ Loft premium down
Temperature Rating (F)
30 degrees (F)
- Full-length zip bag with footbox drawcord can unzip to form a blanket—and packs down tiny
- 750-fill-power ULTRA-DRY Down features 90% Down Cluster Premium Duck Down and is certified to the Responsible Down Standard (RDS)
- Rectangular shape is cut with a slight taper to save weight and maximize thermal performance
- Constructed with full horizontal baffles
- YKK® #3 zipper
- Shoulder and foot drawcords
- Form a double sleeping bag by zipping 2 Traveller sleeping bags together (additional sleeping bag not included)
- Includes lightweight Ultra-Sil compression bag and a storage cell
- 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 | 30 degrees (F) - ISO |
| Tested Comfort | 40 degrees (F) - ISO |
| Temperature Rating (F) | 30 degrees (F) |
| Temperature Rating (C) | -1 degrees (C) |
| Ultralight | Yes |
| Shell | 15-denier nylon |
| Zipper Location | Left |
| Insulation Type | Down |
| Fill | Ultra-Dry 750+ Loft premium down |
| Lining | 15-denier nylon |
| Sleeping Bag Shape | Semirectangular |
| Gender | Unisex |
| Sustainability | Down certified to the Responsible Down Standard (RDS) |
