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Spinntex Bear Bag System

I’ve decided to replace my Ursalite bear bag system and replace it with a higher capacity and more robust system that I’ve assembled myself. If you read my previous post on the Ursalite, you’ll see that I had to make modifications to it to make it more robust. In the end, I’ve decided to just replace the system with another which is stronger, higher capacity and resists rainy conditions more effectively.

OPSACK Vapor barrier bag and Mountain Laurel Designs Spinntex Stuff Sack

My new bear bag system is built around a Spinntex  stuff  sack    from Mountain Laurel Designs (MLD) that has a capacity of 1500 ci and only weighs 0.58 oz. There are two big differences between the Spinxtex Stuff sack and the stuff sack provided in the Ursalite system. First off, the MLD bag does not have a mesh wall like the Ursalite bag. This makes it far more waterproof in rainy conditions. Secondly, the MLD back gives you a reinforced hang loop that is separate from the cinch cord used to close the bag. This extends the life of the bag.

 Spinntex Stuff Sack used as a Bear Bag

There’s also a third difference between the two bags: the MLD is much larger, allowing you to carry 5-7 days of food instead of 3-4 using the Ursalite system. A full vapor barrier OPSACK fits perfectly into the MLD bag as you can see in the top picture.

In addition to the MLD stuff sack, I’ve reused the OPSACK, bpl mini-carabiner, about 30 ft of triptease cord, and small mesh sack I used in my modified Ursalite system. Total weight for all of the components is 4.2 oz, which is the same weight as my modified Ursalite system.

Disclosure: The author owns this product and purchased it using their own funds.

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