With a tapered rectangular shape that offers more room than a mummy bag, the Sea to Summit Trek TkII sleeping bag keeps you warm via water-resistant, RDS-certified 650-fill-power down.
Features
- Water-repellent, 650-fill-power Ultra-Dry Down™ retains 60% more loft and absorbs 30% less moisture than untreated down; down is also PFC-free and RDS-certified
- Responsible Down Standard (RDS) ensures the down does not come from animals that have been subject to any unnecessary harm, such as force-feeding or live-plucking
- Tapered rectangular shape offers more space than a traditional mummy bag while maintaining thermal efficiency
- Nylon shell fabric is treated with a durable water repellent (DWR) finish that sheds moisture and helps block wind
- Vertical chest baffles prevent down migration and 3D sidewall baffle maximizes loft right to the edge of the bag to prevent cold spots
- 2-way #5 YKK® side and foot zippers let you ventilate as needed; oversized zip draft tube keeps out the drafts, while antisnag materials make for smooth zipping
- 3D hood draws in tight to keep you cozy; neck collar draft tube seals in warmth
- 20-denier lining fabric is lightweight and soft on your skin
- Internal security pocket keeps nighttime essentials close at hand
- Comes with an Ultra-Sil™ compression sack and a nylon storage sack
- This bag is designed to zip together with another to create a double bag
Imported.
Technical Specs
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 18 degrees (F) – EN |
| Tested Comfort | 30 degrees (F) – EN |
| Temperature Rating (F) | 18 degrees (F) |
| Temperature Rating (C) | -7.8 degrees (C) |
| Weight | Regular: 2 lbs. 2 oz. |
| Shell | 30-denier nylon |
| Zipper Location | Left |
| Insulation Type | Down |
| Water-Resistant Down | Yes |
| Fill | 650-fill-power Ultra-Dry down |
| Fill Weight | Regular: 1 lb. 2 oz. |
| Lining | 20-denier nylon |
| Sleeping Bag Shape | Semirectangular |
| Fits Up To (in.) | Regular: 72 inches |
| Shoulder Girth (in.) | Regular: 60 inches |
| Hip Girth (in.) | Regular: 57 inches |
| Stuff Sack Size | Unavailable |
| Stuff Sack Volume | Regular: 10 liters |
| Compressed Volume | Regular: 6.1 liters |
| Gender | Unisex |
| Sustainability | Down certified to the Responsible Down Standard (RDS) |































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