Its this one
in Coyote Tan, which I believe is a discontinued color. I slept in this bag twice and its been hanging on a coat hanger in the closet ever since. So it is in like new shape. RH zipper, 80x34.
The OP was asking about the Kowa 501 not the Kowa 55. I believe the Ed 50 will be better than the kowa 501 which does not have ED glass. The Kowa 55 is an entirely different animal but then its almost 3 times the price so it should be.
The Zulu 9 is outstanding but I have not looked thru the 7's. Does the store have a pair of Zeiss Conquests you could compare them too at dusk? Or, maybe a set of Vortex Razors? If they beat out the Razor then they would be comparable to the Conquest, imo. From there, its just a matter if they...