Western Mountaineering Bison V

Reviews

0

Gore Dry-Loft shell. I must begin by stating I am…

Rating: rated 5 of 5 stars
Design: mummy
Fill: 700+ fill down
Temperature Rating: -40 F
Weight: ?
Price Paid: $695

Gore Dry-Loft shell. I must begin by stating I am a total gear head. Before purchase I spent four months researching the highest rated cold weather bags from The North Face, Marmot, Moonstone, Feathered Friends and several other manufacturers. Having just returned from Mt. Mckinley I cannot give enough praise to the Western Mountaineering Bison V. I was using a Gregory "Dru" backpack, somwhat small for most folks on McKinley, dispite the 10 inches of loft this bag has, I was able to get it into the lower compartment of the pack. Both my tent mates had to use VBL liners and bivy sacs in their sleeping systems. (which added considerable weight) It was not untill 14,200 that I even zipped my bag fully closed. Nighttime temps. routinely reach -25 F and at no time was I even slightly chilled. We had three people in a North Face expedition 25 tent which accumulated a significant amount of condensation each night, dispite the moisture the down stayed dry. Upon returning to civilazation I washed the bag with Nixwax down wash. After the washing the bag appeared even loftier than before. Although somewhat bulky, for the extreme cold environment in my opinion this bag is one of the best, if not the best, on the market. Kudos to Western Mountaineering!

Where to Buy

sponsored links
Help support this site by making your next gear purchase through one of the links above. Click a link, buy what you need, and the seller will contribute a portion of the purchase price to support Trailspace's independent gear reviews.

Western Mountaineering Bison V

Discontinued

The Bison V has been discontinued.

reviewers paid:
$695.00

The Western Mountaineering Bison V is not available from the stores we monitor.

Recently on Trailspace

Meet Ross: Bike Tech, Backpacker, Paddler, Reviewer of the Month

Final Days: Review Your Gear to Win Therm-a-Rest Prize

Borah Gear eVent Rain Mitts Review

Exped Travel Box II Plus Review

Heroclip Review

Patagonia Crosstrek Bottoms Review