Big Agnes Cross Mountain 45 Sleeping Bag: 45 Degree Synthetic

Priced: $94.46 Rated:   - 4 stars out of 5 by 3 reviews.
Big Agnes Cross Mountain 45 Sleeping Bag: 45 Degree Synthetic
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Big Agnes Cross Mountain 45 Sleeping Bag: 45 Degree Synthetic -
Your hiking legs need to recharge overnight, and the lightweight Big Agnes Cross Mountain 45 Degree Synthetic Sleeping Bag helps you find that perfect 'not-too-hot and not-too-cold' zone that lets you sleep during a summer backpacking trip. The roomy rectangular design gives you plenty of space to stretch out while a built-in sleeping pad sleeve keeps your cushioning in place, reduces overall weight, and helps whisks you off to dreamland.


  • A softer nylon lining breathes well as you dream about hiking the next day
  • Interior fabric loops allow you to add a sleeping bag liner during colder spring or fall nights
  • The tough, outer nylon ripstop shell features a water-repellent treatment to keep the dew out
  • Lightweight, synthetic insulation (made from 97% recycled materials) keeps you cozy in the cool temps
  • Quilted and shingle construction overlap the inner cells of insulation to prevent heat loss and migration of interior fibers
  • Built-in pillow pocket holds a fleece or pillow for an enhanced night of rest


  • Big Agnes bags don't have ground insulation and are meant to be used with a sleeping pad (not included) to be completely insulated
  • Full-pad sleeve holds any 20-inch-wide sleeping pad and prevents you from rolling off your pad while sleeping


  • A 70-inch YKK #8 zipper down the left or right side of the bag lets you zip it together with a compatible Big Agnes bag (sold separately) for a warm night with a camp companion
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Big Agnes Cross Mountain 45 Sleeping Bag: 45 Degree Synthetic Reviews:

Positive Reviews:

This is the second sleeping bag I have purchased from Big Agnes, the first is a 15 degree bag. I love the size of both bags. I had another bag which was plenty warm but I felt cramped in that bag. This allows me to sleep on my side. I also like the feature of placing your sleeping pad inside the compartment that way you do not roll off the pad as you move during the night.

rscp552046 at on 06/30/2013

Two reasons to own this bag.
1. Great summer light weight bag. I use it 8 months out of the year in the Grand Canyon.
2. As a outer bag for my 15 degree bag. By sliding by 15 degree down bag inside this bag I'm good to below zero on my winter hikes and it still has room for the air mattress and weights less then most 0 degree bags.

Steve Pavlak at on 10/29/2013

Negative Reviews:

I?ve nicknamed this bag the ?freezer bag?. I?ve slept several cold summer nights shivering in 60+ degree temperatures in mild locations like the Shenandoah Mountains, the Trinity Alps during a heat wave, and the Nor Cal Coast. Unless you?re traveling to the tropics and need something to keep you cool, I wouldn't recommend it. This bag is going back.

ben4632373 at on 05/20/2011