Big Agnes Sidewinder SL 35 Degree Down Sleeping Bag
DISCONTINUED
This item has been discontinued and is no longer available for purchase, but we've saved this page for your reference.
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Big Agnes Sidewinder SL 35 Degree Down Sleeping Bag
| Size | Fits up to | Bag Weight | Fill Weight | Compressed Bag Size | Stuff Sack Size |
| Regular | 6' / 183cm | 2 lbs / 907 g | 14.5 oz / 411 g | 6" x 7" / 15 x 18cm | 7.5" x 15" / 19 x 38cm |
| Long | 6'6" / 198cm | 2 lbs 4 oz / 1.02 kg | 17 oz / 477 g | 6.5" x 8" / 16 x 20cm | 7.5" x 15" / 19 x 38cm |
Easy Returns - No Hassle Money Back Guarantee:
Our Outdoorplay Return Policy is designed to give you peace of mind, and we guarantee the quality of every product we sell. If you are not 100% satisfied with your purchase from Outdoorplay, take advantage of our “No Hassle Money Back Guarantee” and return your unused item (in its original manufacturer packaging, along with any hangtags) within 60 days of purchase to receive a refund. The item must be returned in the state you received it, in order to receive a full refund. All returns are subject to evaluation by the Returns Department.
Outdoorplay partners with Redo to offer optional Return Protection coverage at checkout. When you place your order, you can opt into Free Returns during checkout for $2.98. If you think you may need to return or exchange any part of your order later, opting into this small fee up front will cover the cost of your return shipping label. (This is a great deal since our average return shipping label is about $12!)
If you choose not to opt into the Return Protection, you will be responsible for the cost of your return shipping label. The cost of return shipping is based on the weight and size of the product you will be returning.
All sales on Used Items are final: no returns, exchanges, or refunds. Please note, we reserve the right to include a processing fee for some returns (for example, when cleaning or reboxing is required, if you refuse to receive shipment, etc.), which will be deducted from your refund. Oversized items (very large or over 50 lbs.) will require us to manually arrange return shipping.
View Full Return PolicyDomestic Shipping (within the USA):
FREE Standard Shipping* over $49 in the contiguous United States
We offer free standard shipping on most orders over $49 shipped within the contiguous United States. Some exclusions apply. The following are not eligible for free shipping:
- Oversized items that ship using freight services
- Alaska/Hawaii/US Territories
- APO/FPO
- International orders (shipping outside the USA)
Orders shipped using the Free Standard option will be shipped using the most economical method offered by UPS, USPS, or FedEx to your shipping address. Transit times may vary.
If you need to request that either UPS or USPS specifically be used for your delivery, please reach out to us directly prior to placing your order.
Pricing and method availability may vary based on the size of your order and your zip/postal code.
Estimated Delivery Times
- Estimated transit times below are provided in business days (Monday - Friday), excluding holidays.
- Transit time does not include the day the package ships.
- Our warehouse ships orders Monday - Friday, and usually ships within 1-2 business days of receiving your order.
- Estimated transit times are not guaranteed as severe weather, natural disasters, carrier delays and other unforeseen events may impact delivery services.
Standard Methods
|
Shipping Method |
Estimated Transit Time |
|
Standard |
5 - 10 Days |
|
UPS® Ground (HI/AK) |
3 - 6 Days |
|
USPS Priority Mail (HI/AK) |
3 - 7 Days |
Reminder: Transit times for standard methods are estimates only and are not guaranteed. Packages typically ship out from our warehouse within 1 business day, but high shipping volumes and carrier issues including staffing, sorting and machining may cause delays during transit with standard methods. If you need your package by a certain date, choose a shipping method with a guaranteed transit time (Next Day Air).
Expedited Methods:
2 day expedited shipping and 1 day overnight shipping are available for an additional fee at checkout. Please note that expedited orders may not be picked up by the carrier until the following business day.
What to Expect:
- We will send you an email with your tracking number when your order has shipped.
- Your order may ship in multiple shipments. You will receive a separate notification as each portion of your order ships.
- Tracking updates may not be available for a couple of hours after the order is shipped.
- Due to shipping restrictions, some items may only be shipped via ground services as noted on the product page.
Local/In-Store Pickup:
If you are near the Alder Creek retail store in Portland, Oregon and prefer to pick up your order in person, we offer free in-store pickup! Click here to learn more.
Package Protection/Claims:
We offer Package Protection at checkout for a small fee that is based on your order total. If you opt into Package Protection, your order is protected from damage or loss during shipping. If the carrier tracking shows that your package is lost during transit, or if the package arrives damaged, we will refund or replace your order at no cost to you. You can start a claim here. Or, click here to read our FAQs.
International Shipping (outside the USA):
As of May 21, 2025, we are no longer offering International Shipping.
The information below is provided for international customers who placed their orders prior to May 21, 2025.
Learn more about International Orders and Shipping.
Overview
Big Agnes Sidewinder SL 35 Degree Down Sleeping Bag
- Close fitting, jacket-style hood keeps insulation close to the body without sacrificing mobility
- Unique Pillow Barn with interior access from either side for easy adjustment
- Optimized warmth and minimized pressure points with body-mapped insulation
- Shell fabric is breathable with a water-repellent finish
- Anti-snag locking zipper for a smooth and quick zip
- No-draft zipper garage, and ambidextrous zipper
- Low-profile cord lock lets you un-cinch the hood with one hand
- Seal out drafts by cinching insulated tube along upper hood opening
- Exterior loops for hang drying or storage
- Storage sack & stuff sack included
- 100 % manufacturer guaranteed against manufacturing or material defect
SKU: ASB_BABDSIDWSL35M-LegionBlue/Tap-Regular
Technical Specifications
| Shell Fabric | Nylon ripstop featuring a PFC-free water repellent finish |
| Lining | Polyester taffeta featuring a PFC-free water repellent finish |
| Insulation | FireLine ECO Synthetic |
REVIEWS
- AAnonymousRated 5 out of 5 stars4 years agoAwesome
Took it to Alaska and it kept me warm. Amazing quality. People have been commenting on it. I'm really impressed with this product.
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