This is the "Tropen" made by Carinthia in Austria...
A well known bag ... -
check it out on youtube...
I bought it for a friend as a birthday gift.
These sleeping bags are excellent! the quality is outstanding and well made. they are extremely light and compact. I love the the carry bag with the straps that make it so easy to pack and compress for a small footprint to fit within you backpack. I am absolutely happy that i made the choice to purchase these after much research. They worth every penny!!!
Finally put this in the field for a couple of nights for an unexpected trip after having it in a GO BAG for 3-4 years . It got down in the 50's at night and it performed well, I'm confident that it will handle low 40's. I was most impressed with how well the carry sack tightens back down after use. This thing doesn't take up much space when it's stowed.
Ultralight Sleeping Bag