I just have a couple of bottles, usually one with gatorade which seems to slow the freezing. I like seeing how much I have left and I don't have to deal with securing the tube or possible drips and leaks
Hydration System in the Backcountry
One small water bottle for the approach and ascent, done before it's too cold, one thermos with tea for afterwards/summit/backup.
eat snow
go for the yellow snow to keep your trace elemnts well-balanced.
WATCH OUT WHERE THE HUSKIES GO
AN' DON'T YOU EAT THAT YELLOW SNOW
small SS mec flask full of hot tea ,maybe a .5L nalgene of water
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