Big Agnes Sidewinder SL 35 Sleeping Bag
Big Agnes Sidewinder SL 35 Sleeping Bag
Big Agnes Sidewinder SL 35 Sleeping Bag
Big Agnes Sidewinder SL 35 Sleeping Bag

Big Agnes Sidewinder SL 35 Sleeping Bag

Regular price $449.95 Sale price$269.00 Save $180.95
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Size

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 sleeper’s 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 PFAS-free water repellent finish
  • Down fill with a PFAS-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
MATERIALS

  • Shell: nylon ripstop featuring a PFAS-free water repellent finish
  • Lining: polyester taffeta featuring a PFAS-free water repellent finish
  • Primary Fill: 650 fill DownTek™ repels water while maintaining insulating value - bluesign® approved PFAS-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

Specifications

Comfort Temperature Rating 8 °C
Lower Limit Temperature Rating 2 °C
Extreme Temperature Rating -10°C
Bag Weight Reg 907g; Long 1.02kg
Fill Weight Regular: 411g / Long: 477g
Fill Material Primary Fill: 650 fill DownTek™ repels water while maintaining insulating value - bluesign® approved PFAS-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
Outer Material Shell: nylon ripstop featuring a PFAS-free water repellent finish
Max User Height Reg - Up to 183 cm / Long - Up to 198 cm
Compressed Volume Regular: 15 x 18cm / 16 x 20cm
Compression Bag Supplied Stuff Sack Provided

The standard local delivery time from our store in Melbourne for orders placed before noon is 2–7 business days via Australia Post standard delivery. Express Post is also available. Please see our Shipping page for more details. International Orders are subject to flight availability.

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Big Agnes

THE MOTHER OF ALL COMFORT

At our core, we want to inspire you to get outside and find the same appreciation for the backcountry we have.

Big Agnes started over 20 years ago with the goal to build better gear to get people out camping. It was a simple idea rooted in providing comfort to brave souls sleeping in the backcountry and keeping them on their sleeping pad. Who could have imagined two decades later we would be making award-winning gear, changing the sustainability game with solution-dyed tent fabrics, and helping you haul all that gear in backpacks?

Based in a ski town in northwestern Colorado, our backyard is an outdoor paradise, and our testing grounds are within sight of our office. The Continental Divide Trail is home to some of our favorite trails for skiing, hiking, and mountain biking; the Mount Zirkel Wilderness beckons us with its high alpine summits. The Yampa River flows a stone’s throw from our office; and on most lunch hours the office is quiet enough to hear a pin drop while we’re out finding fresh air or fresh tracks of one kind or another.

Being surrounded by outdoor recreation makes us appreciate our environment every time we get outside. We strive to incorporate practices from design ideation to end-of-life solutions committed to protecting the outdoors. Our social impact is greater than the gear we manufacture. We partner with over 20 organizations that help protect our public lands, support sustainable practices, and lead in equality and inclusivity.

Our urge to sleep under the stars and breathe fresh moun­tain air is what continually drives us and keeps us motivated. In the end, the bluebird summits and nights spent listening to raging creeks or even highway noise have made the journey awesome, and truth be told, we wouldn't want it any other way.


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