Whether road tripping or backpacking, don't sacrifice quality sleep over dependable gear. Transform your setup with a Sierra Designs Synthesis 35—a do-it-all sleeping bag with SierraLoft™ insulation.
Fill
SierraLoft synthetic fibers
Weight
2 lbs. 4 oz.
Temperature Rating (F)
35 degrees (F)
- It's also built with lightweight, durable materials that are typically reserved for more premium sleeping bags; durable water repellent (DWR) treatment sheds moisture
- SierraLoft synthetic insulation provides lofty warmth, even when wet
- Dual, anti-snag zipper system makes sleepy midnight adjustments easy, and a draft collar along the zipper prevents uncomfortable cold spots from touching your skin
- To help you fine-tune your temperature, the patented self-sealing foot vent adds instant ventilation at the toe
- Cinching hood locks in heat at the head, and doubles as a barrier when your pillow likes to scoot away
- Draft dodger collar helps prevent drafts
- Made with lightweight, 20-denier ripstop nylon fabric
- Closeout
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 Sierra Designs Camping 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 | Camping |
|---|---|
| Tested Lower Limit | 25 degrees (F) - ISO |
| Tested Comfort | 35 degrees (F) - ISO |
| Temperature Rating (F) | 35 degrees (F) |
| Temperature Rating (C) | 2.2 degrees (C) |
| Weight | 2 lbs. 4 oz. |
| Shell | 20-denier ripstop nylon |
| Zipper Location | Right |
| Insulation Type | Synthetic |
| Fill | SierraLoft synthetic fibers |
| Fill Weight | 1 lb. 7 oz. |
| Lining | 20-denier ripstop nylon |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | 72 inches |
| Shoulder Girth (in.) | 62 inches |
| Hip Girth (in.) | 56 inches |
| Stuff Sack Size | 7.5 x 15 inches |
| Stuff Sack Volume | 12 liters |
| Gender | Unisex |
