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Gear Question

I've used this bivy a few times now. I...

Posted on

I've used this bivy a few times now. I realize condensation is general problem, but has anyone had problems with water build up (from condensation) at the feet? This water build up tends to get my feet wet and I start losing temperature. Know of ways to prevent this kind of problem?

Responded on

Only option is to open the vent a bit more so your breath goes out.

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Yeah, I have that zipper as wide open as it can go. I have the hood as up as possible. On nights that aren't too cold, I even sleep with my head outside. And I still get wet down at the feet. Maybe my feet are just super juicy...

Responded on

Jared, I honestly haven't had much moisture in mine. Certainly not enough to draw heat from my feet. That would certainly be a bummer. Perhaps you know of this trick already but have you tried the Nalgene water bottle in the bag trick? If not, this is what you do. Pour not quite boiling water in a Nalgene bottle and throw it in the foot of your bag about an hour before turning in. It works great! I know the thought of a leaky water bottle sounds a bit risky and when my backcountry skiing buddy promised me it would work I tried it. Amazing thing is - the bottle is still warm when you wake up. This hasn't failed me yet and I've done it about 1/2 dozen times when I was cold enough. Screw on the lid tight and test it and you should be fine. Maybe if your feet are just "super juicy" it will still ward off the suck-i-ness of cold feet and the misery of losing badly needed sleep.

Responded on

Jared, this may sound strange, but try some neoprene socks and if that doesn't work, try a full on vapor barrier liner. The water bottle trick above won't work because that will just create more condensation by making you even hotter. The problem isn't a temperature problem, it is a condensation problem that then translates into a temperature problem. If you have a down bag, this will only get worse the more nights you camp. Hope this helps.