


Big Agnes Sidewinder SL 20
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Big Agnes Sidewinder SL 20Specifically designed for those who sleep on their sides, the patent pending Sidewinder Series was engineered to ensure warmth, comfort, and ease of use no matter which side you're on. Constructed with features you expect from a traditional mummy bag with additional body mapped insulation to optimize warmth where you need it and minimize pressure points and other side effects. The Sidewinder SL is a side sleepers dream bag with technical features that
Quick Dispatch:
Your Big Agnes Sidewinder SL 20 orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Big Agnes Sidewinder SL 20 ships.
Need Help?
Questions about Big Agnes Sidewinder SL 20, sizing, or delivery? We're just an email away.
Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Big Agnes Sidewinder SL 20 in your area.
Get Shipping Estimates
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
You may also like
4.9 ★★★★★
Based on 310 reviews
Sort
Product Reviews
★★★★★ 3
nothing special
Size: Large, Color: Whiteone
Burt does the job
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2024
★★★★★ 4
Nice color
Size: X-Large, Color: G-navy
The shirt is as described but my husband haven't wear it yet. He liked it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
★★★★★ 5
Muy linda
Size: X-Large, Color: Whiteone
Looks nicer than in the picture
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 31, 2025
★★★★★ 5
Perfect Polo
Size: Large, Color: Dark Orange
Great polo. Fix/quality/orange all perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 25, 2025
★★★★★ 5
Nice!
Size: Medium, Color: C-1-black
Nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 2, 2025