If you're a side sleeper who tosses through the night, the men's Big Agnes Sidewinder SL 20 sleeping bag is ergonomically designed to move with you as you roll, keeping you cozy and comfortable.
Fill
650-fill-power DownTek/FireLine ECO
Weight
Regular: 2 lbs. 4 oz.
Long: 2 lbs. 8 oz.
Compressed Volume
Regular: 4.35 liters
Long: 5.8 liters
Temperature Rating (F)
20 degrees (F)
- Ergonomically contoured, technical fit patterned to move with you as you roll from one side to the other, while ensuring warmth and comfort as you settle into position
- 650-fill-power DownTek™ insulation offers lofty warmth throughout with a PFC-free water repellent finish to keep you dry, even if when wet
- Body-mapped FireLine™ ECO synthetic insulation alleviates pressure points at the hips and feet while retaining optimized warmth
- Made from post-consumer recycled polyester, FireLine ECO maintains high loft, compressibility and durability with excellent weight-to-warmth ratio
- Ripstop shell fabric and smooth, polyester taffeta lining are treated with a PFC-free water repellent finish to help keep you dry and warm
- Jacket-style hood keeps insulation close around you without sacrificing mobility
- Stretchy mesh Pillow Barn built into the hood keeps your pillow in place; interior access from either side allows for easy adjustments
- Specially designed footbox mimics the shape and position of your feet while lying on your side for an optimized fit and thermal efficiency
- Smooth, antisnag locking zipper and zipper garage ensures no drafty cold spots
- Low-profile cordlock hood and insulated draft tube allow easy one-handed operation to seal out cold drafts
- Exterior loops allow you to easily hang dry or store bag when not in use
- Compatible with virtually every type and size of sleeping pad (not included)
- Includes storage sack and stuff sack for compact packing
Imported.
View all Big Agnes Backpacking Sleeping Bags| Best Use | Backpacking |
|---|---|
| Temperature Rating (F) | 20 degrees (F) |
| Temperature Rating (C) | -7 degrees (C) |
| Weight | Regular: 2 lbs. 4 oz. Long: 2 lbs. 8 oz. |
| Ultralight | Yes |
| Shell | Ripstop nylon |
| Zipper Location | Front |
| Insulation Type | Down / Synthetic Blend |
| Water-Resistant Down | Yes |
| Fill | 650-fill-power DownTek/FireLine ECO |
| Fill Weight | Regular: 1 lb. 3 oz. Long: 1 lb. 5 oz. |
| Sleeping Capacity | 1-person |
| Lining | Polyester taffeta |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | Regular: 72 inches Long: 78 inches |
| Shoulder Girth (in.) | Regular: 61 inches Long: 65 inches |
| Hip Girth (in.) | Regular: 55 inches Long: 59 inches |
| Stuff Sack Size | 8 x 17.5 inches |
| Stuff Sack Volume | 14.4 liters |
| Compressed Volume | Regular: 4.35 liters Long: 5.8 liters |
| Gender | Men's |
| Sustainability | Contains recycled materials Down certified to the Responsible Down Standard (RDS) |