SKU: 65444457548

Big Agnes Women's Sidewinder SL 20

Sale price$112.47 Regular price$124.97
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  • USA
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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

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Description

Big Agnes Women's 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

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. Our Women's specific bags differ in shape and fill weight with a less drastic taper from shoulders to hips, to feet - reducing cold spots and creating more warmth where it counts.

Features

  • Our Women's bags are designed to contour to your figure for the most thermally efficient and comfortable night's sleep
  • Specifically designed for women 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
  • Petite: fits up to 5'5" / 165cm
  • Regular: fits up to 5'10" / 178cm
  • Works with any pad size or style

Specs + Sizing

Bag Weight Petite: 2lb 7oz / 1.11g / Regular: 2lb 10oz / 1.19g
Fill Weight Petite: 22oz / 634g / Regular: 24.5oz / 700g
Compressed Bag Size Petite: 7" x 8" / 18 x 20cm / Regular: 6" x 7.5" / 19 x 20cm
Stuff Sack Size Petite: 8" x 17.5" / 20 x 45cm / Regular: 8" x 17.5" / 20 x 45cm
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 65444457548

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4.7 ★★★★★
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normanbor
Draper, US
★★★★★ 5
Buy..good item
Size: XX-Large, Color: Black, White, Blue
These I liked. T-shirt material but with the mock turtle neck collar. Light and airy. Going to buy more.
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Reviewed in the United States on June 2, 2026
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Amazon Customer
Waukegan, US
★★★★★ 5
Fits great wear good 😊
Size: Large, Color: Black, White, Apricot
Good shirts
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Reviewed in the United States on February 13, 2026
B
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Big-Z
Lexington, US
★★★★★ 5
NICE FABRIC, good sizing
Size: X-Large, Color: Black, White, Blue
These shirts are nice and long, which I appreciate being over 6' tall. I am always reluctant to buy any shirts that are not tall size, but these are long enough to solve that problem. The fabric is soft and comfortable... a good price for good shirts.
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Reviewed in the United States on September 13, 2024
B
Verified Purchase
Billiam
Lexington, US
★★★★★ 4
Comfortable
Size: Large, Color: Light Blue, White, Black
Nice and soft material , not like a t-shirt.
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Reviewed in the United States on May 13, 2026
K
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Keith
Phoenix, US
★★★★★ 5
Really great shirt. Fits great
Size: Large, Color: Black, White, Brown
Just wore one of mine and I really love it!
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Reviewed in the United States on January 16, 2026

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