Swiss mountaineer and editor of “Ich Liebe Mountains” Rüdiger Robin Flothmann has tested Ziplongs this winter.
Read his in debth test here (in German only): http://ich-liebe-berge.ch/test-northern-playground-ziplongs-microfleece/
Hi liked it so much that he gave it the “Ich Liebe Berge Award 2016” as one of his favorite products.
For me, the three-quarter length Northern Playground Ziplongs microfleece is an excellent thermal layer that you can always bring in your backpack. They are quickly to put on without having to take off your boots. Overall, they facilitate rapid dressing of long underpants enormously!