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After a long, exhausting day in the backcountry, those looking to save weight climb into the Sierra Designs Baffin Bivy. Designed for ultralight backpackers, alpinists, and big wall climbers, this bivy sack features DriZone waterproof shell fabric and fully taped, PVC-free seams to seal out stormy weather. And at right around a pound, the Baffin won’t even be noticed until the weather rolls in.

  • Single-wall bivy design saves weight by eliminating the need for a tent canopy and fly; ideal for three-season climbing and trekking applications
  • DriZone waterproof breathable shell fabric repels wet weather while allowing excess heat and condensation to escape
  • PVC-free seam taping and coated nylon floor protect against leakage when harsh weather strikes
  • Large mesh window circulates air without letting critters in
  • A guy-out attachment lets you anchor in on ledges or exposed camps

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Here's what others have to say...

does any one know if a marmot south col...

does any one know if a marmot south col -29 down sleeping bag would fit in this or would it be a tight fit
sleeping bag is regular lenght

You need to look at the size of your sleeping bag. if it smaller than this:

length: 86", Shoulder: 70", Foot: 48". it will be good. if it just in this size, it not that good

What are the dimensions? Length and width...

What are the dimensions? Length and width or girth at the shoulders and feet?

Inside length: 86"
All circumference measurements:
Shoulder girth: 70"
Hip girth: 68"
Foot box girth: 48"

How wide is this bivy?

How wide is this bivy?

I don't see screen / mesh mentioned......

I don't see screen / mesh mentioned... does this fella have something to let the air in and keep the bugs out?

This website's description has a "no-see um mesh window."

Just got mine today. Yes it has a mesh window.