This tends to trap Your whole body heat and can help alot. I've made use of this process in temps right down to mid thirty's and usually wind up having a layer off inside the midnight.
There is a reason why the hotter SF1 with nearly the same excess weight is a little more expensive. For my part truly worth each individual penny, particularly when just one would like to use it With all the properly fitting bivvy bag.
I always utilize a Therm-a-Rest Z Lite foam pad beneath an air mattress beacause I don't trust the air matress and mainly because of the rocky soils in AZ.
They are really nice, I went camping with my spouse, and he or she utilized my wiggy's 0 diploma bag within a US army patrol bag, and she or he was toasty. Climate received done to thirty degrees, so she was overbagged, but she's very small and constantly cold.
The British made Snugpack Specific Forces program has these types of panic zippers, the Austrian manufactured Carinthia Military sleeping luggage have this sort of zippers and I guess another initially in NATO armies issued sleeping luggage have such zippers as well.
By the way a lot of the old military bag zippers work where if you pull it all the way up it disconnects and the bag pops open up to enable the soldier a hasty exit in fight.
In cold ailments the condensation challenge gets to be significantly heavier than in heat circumstances. And that's why I transformed my rest process to a contemporary bivvy bag (with poncho roof if needed).
Which is kind of what I was pondering. Lots of them are promoted to be a "sniper" sleeping bag for some cause.
FWIW, I will likely be employing a USGI MSS -- both bags as well as the bivy. I'll be on a cot in an unheated tent. Among the MSS along with the cot I will be employing a Ridge Relaxation foam pad and two wool blankets. I could insert a woobie or perhaps a fleece throw as An additional layer inside the bag.
I generally make use of a Therm-a-Rest Z Lite foam pad beneath an air mattress beacause I don't trust the air matress and because of the rocky soils in AZ.
Just my ideas and just like a former post stated most of us think about ourselves as "sniper" substance until we meet genuine snipers. I've recognized and satisfied several, we had a former Maritime Drive Recon sniper in my platoon during the Sleeping Bag 82d Airborne and he would convey to us unclassified war tales every so often. That guy would visit the field Using the least consolation equipment of any individual from the Battery.
Northern Bohemia, Czech Rep., Europe Jan 9, 2014 #11 I used a Zippo - like hand hotter in my sleeping bag quite a few situations. I felt very comfortably and i am nevertheless alive. I had the hand warmer in a pouch on my upper body. Czech
Nonetheless can’t determine when yours is from, after getting bleary-eyed investigating terribly mimeographed studies and each M-1949 label I can find my best guess is usually that these have been Portion of a batch within the nineteen seventies for forest firefighters or some thing like that, using lighter pounds ripstop fabrics and by using a label nonetheless utilizing the old FSN nomenclature, it's possible to tell apart them from army difficulty?
Yukon, Okay Jan nine, 2014 #7 Rusty, that MSDS is for butane. The pinnacle warmer that the OP is speaking about does not use butane. It employs the traditional zippo fluid. I do not see an MSDS within the hand heaters on this site in any way.