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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
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Description
Big Agnes Sidewinder SL 35Specifically 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
Specifically 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 roll seamlessly from one adventure to the next, and from one side to the other at night.
Features
- Specifically designed for people who sleep on their sides with a technical fit, patterned to move with you as you roll from one side to the other
- Close fitting, jacket-style hood keeps insulation close to the body without sacrificing mobility
- Keep pillow in place with unique Pillow Barn made of stretch mesh material with interior access from either side for easy adjustment
- Optimized warmth and minimized pressure points with body mapped insulation
- Improved shell fabric and lining with PFC-free water repellent finish
- Down fill with a PFC-free water repellent finish throughout the bag provides lofty warmth while synthetic insulation helps alleviate common pressure points in the hips and feet
- Optimized fit and thermally efficient footbox is patterned to mimic the shape of your foot position while lying on your side
- Smooth, quick zip with anti-snag locking zipper with no-draft zipper garage, and long, ambidextrous zipper
- Easily adjust hood without unzipping using low-profile internal cordlock access
- Seal out drafts by cinching insulated tube along upper hood opening
- Hang dry or store bags with exterior loops
- Storage sack & stuff sack included
Construction + Materials
- Shell: nylon ripstop featuring a PFC-free water repellent finish
- Lining: polyester taffeta featuring a PFC-free water repellent finish
- Primary Fill: 650 fill DownTek repels water while maintaining insulating value - bluesign Certified PFC free water repellent chemistry
- Body Mapped Fill: FireLine ECO Synthetic Insulation, 100% post-consumer recycled polyester, featuring low-denier fibers that are tightly woven and provide high loft, compressibility, high weight-to-warmth ratio, and durability
- Regular: fits up to 6' / 183cm
- Long: fits up to 6'6" / 198cm
- Works with any pad size or style
Specs + Sizing
| Bag Weight | Regular: 2lb / 907g / Long: 2lb 4oz / 1.02kg |
| Fill Weight | Regular: 14.5oz / 411g / Long: 17oz / 477g |
| Compressed Bag Size | Regular: 6" x 7" / 15 x 18cm / Long: 6.5" x 8" / 16 x 20cm |
| Stuff Sack Size | Regular: 7.5" x 15" / 19 x 38cm / Long: 7.5" x 15" / 19 x 38cm |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.9 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Relaxed Fit Linen Blend Button Down Shirt
Size: Large, Color: Light Beige, Size: Large, Color: Light Beige
I like this shirt and it actually looks better than it does in the attached photo. The shirt is 55% linen and I took the photo without ironing because I wanted to show that this shirt is better than many linen shirts when it comes to wrinkles. In fact, I can steam the wrinkles out and don’t need to drag out the iron. The shirt is cool and comfortable. I like that you can use the draw string waist to make it more fitted. The button holes are a little small, which makes it harder for those of us who have arthritis to use. I will just leave most of the buttons fastened and slip the shirt over my head. It seems very well made. I looked it over carefully and did not find any loose threads or missed stitches. I think this is a good value.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Cute summer top
Size: Large, Color: Light Beige, Size: Large, Color: Light Beige
Cute and comfortable linen blend shirt that’s perfect for summer. The fit is relaxed without looking oversized or sloppy, which I really like. I usually wear between a large and extra large depending on the chest area, and I ordered the large based on the size chart. It fit correctly according to the measurements, but I personally think the extra large may have been a little more comfortable for me through the bust. For reference, I’m around a 33-inch waist and a 42C bust.
The light beige color is really pretty and easy to style with denim jeans, jean skirts, or sandals for a casual summer look. Since it’s a lighter-colored cotton-linen blend, you’ll want to wear the proper undergarments underneath depending on your skin tone, which is pretty normal for linen-style fabrics. I also love the adjustable cinched waist because it gives the shirt a more flattering shape without making it tight. Overall, it’s a beautiful lightweight top with a nice relaxed fit, and I definitely recommend it.
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Reviewed in the United States on May 16, 2026
★★★★★ 4
Linen/Cotton Blend; Machine Wash Cold, Lay Flat or Hang to Dry; Real Buttons
Size: Medium, Color: Light Beige, Size: Medium, Color: Light Beige
Amazon Essentials Women's Relaxed Fit Linen Blend Wide Sleeve Shirt with Adjustable Tie Waist Review:
I got this for my daughter mostly (we trade clothes back and forth), and she finds it very comfortable and flattering. For reference, her measurements are about:
39 inches around the bust
35 inches around the hips/stomach
And 42 inches around the bottom
I ordered her a Medium, and it fits her very well, but it's on the edge of being big. If she lost a little weight, it might seem big but fit me a little better, but it fits her very well now.
It's a very breathable fabric, and the cut is flattering.
It is a little see through, not majorly, but she says she will probably wear it with a white or nude tank top as an underlayer, possibly with a bra too, but at that point it might be too hot for a summer outfit.
It could be dressed up or down and would pair well with a skirt or jeans, with sandals or heels or cute sneakers. It could also be worn fully unbuttoned over a tank top, if one wanted.
The buttons are real, and seem well-sewn. The collar is initially reluctant to stay open, but it will relax in time or one of us could iron it like that, but we're unlikely to, lol.
The only complaint she had was that when she goes to raise up her arms and hold them horizontally out in front of herself, the sleeves and shoulders become too tight across the back and up the arms, although this is a very common problem, unfortunately, with women's/girl's clothing. We'll have to live with it, but it will keep the shirt from being worn as often as it might have been.
We're definitely happy for the natural fibers (a linen/cotton blend).
We are both excited to wear and style it. I'll include photos.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Stylish & Comfortable Linen Blend Shirt with Great Fit and Durable Feel
Size: Small, Color: Light Beige
This Amazon Essentials linen blend shirt is a really nice addition to my wardrobe. The relaxed fit sits comfortably without feeling too loose or shapeless, and it drapes well on the body. The wide sleeves and adjustable waist add a stylish touch, making it look both casual and slightly dressed-up at the same time. The fabric feels good—light, breathable, and perfect for everyday wear. It has that easy, airy feel that works really well for warm weather while still looking put together.
After the first wash, I was happy to see that the quality stayed the same. No noticeable shrinking, fading, or change in texture, which gives confidence that it will hold up well over time.
Overall, it’s a simple but very flattering shirt that combines comfort, style, and good durability. Great for everyday outfits or casual outings where you still want to look a bit polished.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Sizing Varies, But an Amazing Tee if you get the right size!
Size: Large, Color: Navy
I ordered this in a size Large, my recommended size per Amazon and the size chart, it was so small through the underbust area that I could not wear it. I then ordered an XL and it is huge! The XL is too big everywhere, but especially through the bust! For your reference the bust line in the XL measures 42" pit to pit. I am going to try again to order a Large and see if perhaps I just got one that was sized incorrectly.
This tee is so cute. I love the fit, the neckline, the slight flare at the hem. It's super cute and offers a great feminine look and feel. The material is amazing. Super soft, perfect non-clingy drape, opaque, lightweight . . . there's nothing not to love here!
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Reviewed in the United States on October 6, 2025