Is it keep me warm under zero?
81961
If you mean, will it keep you warm when the temperature is below freezing, the answer is yes. Wear them under your regular clothing and use appropriate cold weather gear when outdoors.
1585323
If I'm not mistaken it's rated to -10 but that's if your wear cold weather cloths while inside it will keep you warm to about 16 that's my true rating
45537
By my standards is about medium weight. its not heavy or anything but it does keep me warm without me overheating. It light enough to breath. I really like it.
1175254
I use it in an air conditioned home so it's hard to say but I don't think it's too warm. My son has never felt hot while in it and that is using it with full pjs.
3459
I'm a cold person, so I also have an electric blanket. When I lived in Colorado I had an electric mattress cover and a serious down comforter. However, I found I could keep the electric blanket temperature lower with this blanket. For me, it was more effective and lighter than the non-down alternative comforter I replaced.
76616
I'd say the coat is perfect for those temps. It will keep you warm without being too hot. I'd use a good, breathable under layer too.
388454
No. It is warm and comfortable. But as I told you it will loose its grip in some time.
829542
Window open at -10 degrees, hmmm? I too need to feel and smell fresh air 24/7 even if it's only a crack. I live in CT and it gets to single digits in the winter, but -10? I can only tell you that I am plenty warm enough with this comforter and have never had to put an additional blanket on top of it. Too me, it's very warm and insulating, but I have never gone down to -10. It's light and fluffy and cool in the summer, warm and snuggly in the winter.
34933
No it won't keep you warm in cold water the fabric isn't that thick. It's better for sun protection.
2210611
That depends on your level of comfort. It works for me because I get hot at night but if you are always cold it will probably not be warm enough.
288964
No but it's made out of wetsuit material so it might keep you warmer in the water. Definitley not waterproof though.
880111
No. You would want to look for Heat Gear items (designed to keep you cool on the heat). This is a Cold Gear item (designed to keep you warm in the cold).
1293172
No. It keeps me pretty cool. There are also vents you can open to circulate some more air.
242742
Absolutely. My husband rarely has his side on but mine is on low all night and it's more than warm enough even for me who is always cold.
81884
Unfortunately I'm not real familiar with the camping conditions that area. All I could say is that if you don't plan on camping in below zero weather then I would get the zero degree sleeping bag. If you were on the verge of 0 degrees and a little below I think an extra blanket would keep you plenty warm.
3680
This doesn't zip inside the parka, it's meant to be worn as the layer right underneath. It's a high-quality fleece - under a ecws parka it'll keep you warm.
1345916
My first use of this bag was on a night that dipped to 40 degrees. If I completely covered myself (hood up and tight) I was actually a little too warm. My feet were chilly all night though regardless - wish I had worm wool socks that night.