Watch the tube and mouthpiece

By John Hansen Ranked #515 - Backpacks November 18, 2009

Keeps water from freezing down to about 20 degrees, but you have to really watch the tube and mouthpiece. You can blow the water back into the bag to keep the tube from freezing, but I also put a piece of 1/2 inch foam pipe insulation around the tube. Looks geeky, but it works in the White Mountains of NH down to about 10 below -- even if you forget to blow the water back into the bag. If mouthpiece freezes, you can thaw it in your mouth. Hydration is so important in the winter, that I use this in addition to a backup water bottle.

View Details: CamelBak Zoid Winter Hydration Pack - 100cu in

Helpful Votes: 0 Yes