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Backpacking Light Aircore 2-Ounce Ultralight Bear Bag System

Weighed On Our Scales » 2.0 oz (56 g)

Backpacking Light Aircore 2-Ounce Ultralight Bear Bag System

Ultralight bear bag, odor-proof liner, hanging rope, micro carabiner, and rock throwing sack combine with an innovative hanging method makes ultralight bear bagging a cinch!


The UrsaLite Bear Bag System is a sub-TWO ounce package that simplifies – and lightens – the system and process for hanging your food in the backcountry.

The UrsaLite Bear Bag System is designed based on the principles of the Pacific Crest Trail (PCT) Method for food hanging, which is detailed in Bear Bag Hanging Techniques.

Warranty & Usage Guidelines

The UrsaLite Ultralight Bear Bag System is not designed for careless hikers that do not understand the durability limitations of using ultralight fabrics.

We have optimized this system by reducing its weight. To that end, the system utilizes some of the lightest fabrics available.

While we warranty the system to be free from manufacturing defects, we cannot warranty fabrics against abrasion or tearing, or against seams from ripping as a result of excess weight in your food sack. The rock sack is going to get beat up: don't worry about it. If you need a new one, we'll send one to ya. Otherwise, simply replace the rock sack with a mesh avocado bag from your grocery store or sew your own out of scrap fabric or an old headnet.

Please do not exceed a 10-12 pound food weight in your sack. More is possible, but requires very careful attention to hanging and lowering your food so as not to place excessive weight on seams.

Do not carry the sack by its drawcord. Carry it by supporting its weight with your hands underneath the bottom of the bag.

Looking for the Ursack?

UrsaLite Bear Bag Systems are not manufactured or endorsed by Ursack®, which is a bear resistant food bag made from bullet proof fabric. For more information about the Ursack®, please visit the Ursack Web Site.


  • Food Storage Sack (600 cu. in. / 10 liters)
  • 12” x 20” O.P. Odor-Proof / Waterproof Food Storage Sack Liner
  • Fifty Feet (50 ft / 15.24 m) of AirCore PRO Accessory Cord (not AirCore Plus or AirCore UrsaPro Spectra Rope), a product that features 1.75 mm diameter braided construction and a urethane coating that glides easily over tree branches.
  • Rock Sack (4" x 6")
  • Nite-Ize S-Biner #1 (4 cm. X 1.4 cm.) We've loaded this carabiner to 55 lbs. without failure - this load didn't even bend the carabiner a smidge.
  • Designed primarily with ultralight simplicity in mind
  • Optimized for food hanging using the PCT Method
  • Stuff sacks featuring blends of silicone-coated ripstop nylon and microseeum mesh sacrifices some durability and require a reasonable amount of care in handling them.
  • Colors may vary, but are usually gray and black, as in the photograph above.


  • Weights:
    • Food Sack: 0.54 oz (15 g)
    • AirCore UrsaLite Spectra Throw Rope (50 feet) + Rock Sack + Carabiner: 1.44 oz (41 g)
    • Odor-Proof Liner: 0.95 oz (27 g)
  • Total System Weight With Odor-Proof Liner: 2.93 oz / 83 g
  • Total System Weight Without Odor-Proof Liner: 1.98 oz / 56 g


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