I have been using First Lite's Unconphagre jacket in the 37.5 fabric for the last couple of months and can honestly say that it works ridiculously well. It is as breathable as a regular, plain, non-waterproof windshell but it actually is very watertight and beads water.

This bivy bag may well be the best bivy bag on the market just from the material alone.

Drooling tor this one!!

Last edited by alukban; 02/26/15.