How To Get It
- Limited Quantity Available/While Supplies Last
- Mummy Style Sleeping Bag
- Stay Warm in 20 Degree Temperature
- Hooded for Added Warmth
- No Draft Zipper
- Down Tek Filled
Limits 5 Per Membership
Includes:
Big Agnes Sidewinder SL 20° Sleeping Bag Small
Big Agnes Sidewinder SL 20° Sleeping Bag Regular
Big Agnes Sidewinder SL 20° Sleeping Bag Long
Includes:
- Storage sack
- Stuff sack
Big Agnes Sidewinder SL 20° Sleeping Bag Small
- Model: BWSWSL20P21
- Sidewinder SL 20°
- Traditional Mummy bag design
- Designed for side sleepers and stays in place as you roll over
- 650-fill DownTek fill to provide warmth
- FireLine™ ECO synthetic insulation made from post-consumer recycled polyester, smart placement in hip area and footbox for comfort and warmth and minimize pressure points
- Insulation can aid with pressure points in the hips and feet
- Jacket-style hood fits close to the body keeping warmth in the bag
- Hood can be adjusted without unzipping by using internal cordlock
- Pillow pocket with stretch mesh material allowing access from either side of the interior for easy adjustment and keeping pillow in place
- Footbox designed to match the shape of your foot position
- Internal pocket for storing phone or headlamp
- Water repellent material without added PFAS
- Ambidextrous anti-draft and anti-snag locking zipper
- Exterior loop for hanging to dry
- Outer Shell: Ripstop nylon
- Total Weight: 2lb 7oz lb oz
- Fill: 650 Downtek + Fireline Eco
- Total Fill Weight: 22 oz
- Compressed Bag Size: ” 7x8 ”
- Stuff Sack Size: 14L ”8 x17.5 ”
- Max User Height: 5’6”
- Shoulder Girth: 56”
- Hip Girth 54”
- Foot Girth 31”
- Made in: CHINA
Big Agnes Sidewinder SL 20° Sleeping Bag Regular
- Model: BSWSL20R21
- Sidewinder SL 20°
- Traditional Mummy bag design
- Designed for side sleepers and stays in place as you roll over
- 650-fill DownTek fill to provide warmth
- FireLine™ ECO synthetic insulation made from post-consumer recycled polyester, smart placement in hip area and footbox for comfort and warmth and minimize pressure points
- Insulation can aid with pressure points in the hips and feet
- Jacket-style hood fits close to the body keeping warmth in the bag
- Hood can be adjusted without unzipping by using internal cordlock
- Pillow pocket with stretch mesh material allowing access from either side of the interior for easy adjustment and keeping pillow in place
- Footbox designed to match the shape of your foot position
- Internal pocket for storing phone or headlamp
- Water repellent material without added PFAS
- Ambidextrous anti-draft and anti-snag locking zipper
- Exterior loop for hanging to dry
- Outer Shell: Ripstop nylon
- Total Weight: 2 lb 4 oz
- Fill: 650 Downtek + Fireline Eco
- Total Fill Weight: 19 oz
- Compressed Bag Size: 6.5” x 8”
- Stuff Sack Size: 14L 8” x 17.5”
- Max User Height: 6’
- Shoulder Girth: 61”
- Hip Girth” 55”
- Foot Girth” 36”
- Made in: China
Big Agnes Sidewinder SL 20° Sleeping Bag Long
- Model: BSWSL20L21
- Sidewinder SL 20°
- Traditional Mummy bag design
- Designed for side sleepers and stays in place as you roll over
- 650-fill DownTek fill to provide warmth
- FireLine™ ECO synthetic insulation made from post-consumer recycled polyester, smart placement in hip area and footbox for comfort and warmth and minimize pressure points
- Insulation can aid with pressure points in the hips and feet
- Jacket-style hood fits close to the body keeping warmth in the bag
- Hood can be adjusted without unzipping by using internal cordlock
- Pillow pocket with stretch mesh material allowing access from either side of the interior for easy adjustment and keeping pillow in place
- Footbox designed to match the shape of your foot position
- Internal pocket for storing phone or headlamp
- Water repellent material without added PFAS
- Ambidextrous anti-draft and anti-snag locking zipper
- Exterior loop for hanging to dry
- Outer Shell: Ripstop nylon
- Total Weight: 2 lb 8 oz
- Fill: 650 Downtek + Fireline Eco
- Total Fill Weight: 21 oz
- Compressed Bag Size: 7.5” x 8”
- Stuff Sack Size: 14L 8” x 17.5”
- Max User Height: 6’6"
- Shoulder Girth: 65”
- Hip Girth” 59”
- Foot Girth”40”
- Made in: China
| Brand | Big Agnes |
|---|---|
| Color | Blue |
| Online Only | Online Only |
| Shell Material | Nylon |
This item is covered by Costco's guarantee to refund your purchase price if you are not completely satisfied. Costco's guarantee applies, even though this item may not be covered by the manufacturer's warranty, because Costco is not an "authorized" dealer of the merchandise.
Standard shipping via UPS Ground is included in the quoted price.
Express shipping is via UPS.
Please choose your shipping method at checkout.
An additional Shipping and Handling fee will apply to express shipments. This fee will be quoted at checkout.
*Delivery is available to Alaska, Hawaii and Puerto Rico; however, an additional Shipping and Handling fee will apply. This fee will be quoted at checkout. Additional transit time may also be required.
Costco.com products can be returned to any of our more than 800 Costco warehouses worldwide.
Shop Confidently
We are committed to offering the best value to our members, with a risk-free 100% satisfaction guarantee on your membership and merchandise with some exceptions and limitations*. If you have questions about your membership or products you've purchased at Costco, please visit the membership counter at your local Costco or Contact Customer Service.
*Certain items are not available for return or refund or may have limitations on their eligibility for return or refund. View Costco's Return Policy.
Costco Technical and Warranty Services for select electronics and consumer goods. For manufacturer warranty information, please contact us.
Compare region updated
0