Big Agnes Sidewinder SL 20 Degree 650 RDS DownTek Sleeping Bag - Regular

Big Agnes designed their Sidewinder SL 20 Degree 650 RDS DownTek Sleeping Bag - Regular specifically for side sleepers who want warmth that moves with them through the night. Their technical fit and articulated shape reduce pressure points and help the bag stay aligned as sleepers roll from side to side, while 650 fill DownTek insulation adds reliable loft and moisture-resistant performance. A jacket-style hood, optimized hand position, and draft-controlling features make this bag a standout for comfort-driven backcountry sleep systems.

PRODUCT CONDITION

This item is in New condition. The item has not been damaged, has not been used or worn, and shows no signs of wear.

TECH SPECS

• 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 water repellent finish without intentionally added PFAS
• Down fill 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
• Total Weight: 2lb 4oz
• Fill Type: 650 DownTekTM + FireLineTM Eco
• Total Fill Weight: 19oz
• Compressed Bag Size: 6.5" x 8"
• Stuff Sack Size: 14L 8" x 17.5"
• Max User Height: 6'
• Shoulder Girth: 61"
• Hip Girth: 55"
• Foot Girth: 36"

MATERIALS

• Shell: nylon ripstop featuring a water repellent finish without intentionally added PFAS
• Lining: polyester taffeta featuring a water repellent finish without intentionally added PFAS
• Primary Fill: 650 fill DownTekTM repels water while maintaining insulating value - bluesign approved water repellent chemistry without intentionally added PFAS
• Body Mapped Fill: FireLineTM 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