Big Agnes Sidewinder SL -7C Down Sleeping Bag - Unisex 6012-244

Big Agnes Sidewinder SL -7C Down Sleeping Bag - Unisex

Free shipping for this item

Free store pickup

Order online, get it at your local MEC. It couldn’t be easier.

Rocksolid Guarantee

Shop with confidence. If it’s not working out, you can return it (consumables, undergarments and swimwear excluded).

Really. If it's not up to snuff after you use it (a couple times) you can still bring it back.

It lasts longer than 30 days, but not forever. We'll be fair about it.

Price match guarantee

Found a better deal in Canada? Up to 30 days after purchase – we’ll match it.

If you see a lower price for this exact item advertised online, in print or in a store, give us a call at 1 (888) 847-0770.

If it’s identical, brand-new, in stock, and sold and shipped by a Canadian-based retailer, we’ll match that price.


Show Description

A cozy mummy style bag for the side sleepers among us. The Sidewinder's innovative cocoon pattern offers a great night’s sleep. The SL version uses a body-mapped blend of down and synthetic insulation to add extra coziness. Synthetic insulation at the hips and foot box reduces common cold spots for side sleepers. The blanket-like hood has hand pockets in the corners, so you can tuck yourself in just like you do at home.

  • Shell is nylon, lining is soft polyester microfiber, both have a water-repellent finish.
  • 650 fill-power DownTek™ uses Bluesign™ approved chemistry for water-repellency, has antimicrobial and antibacterial protection
  • Sourced under the Responsible Down Standard.
  • FireLine™ Eco insulation uses 100% post-consumer recycled polyester. Durable, low denier fibres are tightly woven to provide high-loft, compressibility, a high weight-to-warmth ratio.
  • Cocoon design holds insulation close to the body.
  • Horizontal baffles create tunnels of warmth around your body and prevent insulation from shifting and creating cold spots.
  • Anti-snag locking zipper operates ambidextrously.
  • Draft flap behind zip ensures cold air doesn't sneak in.
  • Optimized footbox mimics the natural position of your feet when lying on your side.
  • Hood lets you lift and move your head, even when fully zipped up and has a one-handed cinch adjustment.
  • Stretch-mesh pillow pocket keeps your pillow right where you want it.
  • Hang loops let you air it out in the sun.
  • Includes a mesh storage bag and a nylon stuff sack.


Bluesign® Approved Material
Recycled content

Tech specs

Show Tech specs
  • 1.02kg (Regular Left Zip)
  • 1.13kg (Long Left Zip)
Ideal for Backpacking
  • Fits up to 6' 0" (183 cm) (Regular Left Zip)
  • Fits up to 6' 6" (198 cm) (Long Left Zip)

The number of average sized people that the product can comfortably sleep.

Temperature -7°C
Shape Mummy
  • 650 fill-power water-repellent goose down
  • Synthetic
Down weight

The amount of down used to fill the product (measured in grams and given for size medium bags).

  • 538g (Regular Left Zip)
  • 604g (Long Left Zip)
  • DownTek
  • FireLine
Construction Offset quilt
Face fabric Nylon ripstop
Lining/backer Polyester
Packed size
  • 16 x 20cm (Regular Left Zip)
  • 19x20cm (Long Left Zip)
Shoulder girth
  • 155cm (Regular Left Zip)
  • 165cm (Long Left Zip)
Hip girth
  • 140cm (Regular Left Zip)
  • 150cm (Long Left Zip)
Foot girth
  • 91cm (Regular Left Zip)
  • 102cm (Long Left Zip)

An insulated collar that covers yours neck and shoulders to reduce heat loss.

Additional feature(s)
  • Draft tube behind zipper
  • Interior pocket(s)
  • Stuff sack included
  • Pillow pocket
  • DWR-treated shell fabric
Product sustainability
  • Certified Responsible Down
  • Bluesign® Approved Material
  • Recycled content
Made in China