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Big Agnes Sidewinder 0° Sleeping Bag

Big Agnes Sidewinder 0° Sleeping Bag

Description 

The Big Agnes Sidewinder 0 Degree Sleeping Bag is built specifically for side sleepers who need warmth and comfort during cold-weather backpacking trips. Featuring Second Generation Side Sleeper Technology, its body-mapped design moves naturally with you as you shift positions throughout the night, eliminating the restrictive feel of traditional mummy bags. Insulated with 650-fill DownTek™ water-repellent down, it delivers excellent warmth and packability, while strategically placed FireLine™ ECO synthetic insulation at the hips, knees, and shoulders enhances comfort at key pressure points.

Designed for performance in freezing conditions, the Sidewinder includes a jacket-style hood that moves with your body, a thermally efficient footbox shaped for side sleeping, and thoughtful features like a Pillow Barn sleeve and draft-blocking zipper construction. Built with durable recycled materials and rated to 0°F, this sleeping bag offers dependable warmth, mobility, and comfort for serious backcountry adventures.

Specs
Total Weight
3 lb 4 oz
ISO Comfort 18°F
ISO Limit 5°F
Fill Type 650 DownTek™ + FireLine™ ECO
Total Fill Weight 27 oz Down + 6 oz Synthetic
Compressed Bag Size 9.5" x 10"
Stuff Sack Size 26 L 10" x 21"
Max User Height 5' 6"
Recommended Pad Size Works with any pad size or style
Shoulder Girth
58"
Hip Girth
52"
Foot Girth
33"
Manufacturer Warranty Limited Warranty 
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From $112.86

Original: $322.46

-65%
Big Agnes Sidewinder 0° Sleeping Bag

$322.46

$112.86

Product Information

Shipping & Returns

Description

Description 

The Big Agnes Sidewinder 0 Degree Sleeping Bag is built specifically for side sleepers who need warmth and comfort during cold-weather backpacking trips. Featuring Second Generation Side Sleeper Technology, its body-mapped design moves naturally with you as you shift positions throughout the night, eliminating the restrictive feel of traditional mummy bags. Insulated with 650-fill DownTek™ water-repellent down, it delivers excellent warmth and packability, while strategically placed FireLine™ ECO synthetic insulation at the hips, knees, and shoulders enhances comfort at key pressure points.

Designed for performance in freezing conditions, the Sidewinder includes a jacket-style hood that moves with your body, a thermally efficient footbox shaped for side sleeping, and thoughtful features like a Pillow Barn sleeve and draft-blocking zipper construction. Built with durable recycled materials and rated to 0°F, this sleeping bag offers dependable warmth, mobility, and comfort for serious backcountry adventures.

Specs
Total Weight
3 lb 4 oz
ISO Comfort 18°F
ISO Limit 5°F
Fill Type 650 DownTek™ + FireLine™ ECO
Total Fill Weight 27 oz Down + 6 oz Synthetic
Compressed Bag Size 9.5" x 10"
Stuff Sack Size 26 L 10" x 21"
Max User Height 5' 6"
Recommended Pad Size Works with any pad size or style
Shoulder Girth
58"
Hip Girth
52"
Foot Girth
33"
Manufacturer Warranty Limited Warranty