BA Sidewinder SL 20

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.

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BA Sidewinder SL 20 – Regular (Fits up to 6'0")

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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.

Regular: fits up to 6′

Long: fits up to 6’6″

Works with any pad size or style

Storage sack & stuff sack included.

Specs + Sizing

Bag Weight
Regular: 2lb 4oz
Long: 2lb 8oz
Fill Weight
Regular: 19oz
Long: 21oz
Compressed Bag Size
Regular: 6.5″ x 8″
Long: 7.5″ x 8″
Stuff Sack Size
Regular: 8″ x 17.5″
Long: 8″ x 17.5″

Bag Size

Regular (Fits up to 6'0")


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