The hunting magazine “Jeger” have tested the Ziplongs. It was a full score.
“To be able to put on isolating and dry clothes is a must in rough an unstable weather. To not be able to do this is a risk both for your health and for your shooting abilities. As a hunter you are supposed to sit still and be concentrated for hours, ready to take advantage of the situastion when the opportunity to shoot finally arrives. A cold hunter is a lousy shooter, it’s as simple as that. That’s why Ziplongs is such a lifesaver. With the zipper on the outside of both legs, ziplongs makes for a quick and easy way to put on or off you long John’s without removing your shoes! I can be a bit sceptc when it comes to zippers and rough outdoor use, but with these products I’ve experienced no issues throughout my testing.” – Jeger.