I talked to them last fall on the Hunter. They said it has equivalent of 200 grams thinsulate. I see they have this listed on their website. The Wild Rock looks to have 400 gr Thinsulate.
I also talked to Lathrop and Sons yesterday on their new boots, designed by them. Both are non-insulated but according to them, using E-vent instead of Goretex, it allows the foot to truly breathe, meaning its drier. They seem to think this fact makes a boot 'warmer' because your feet stay dry. They claim the E-vent provides an equivalent of 200 gr Thinsulate.
I have a set of the schnees beartooth insulated boots with E-vent. I can't tell if they are warmer than they would be if they were gore-tex, but I can tell you they are completely waterproof and do a great job of drying-out my feet which sweat a good bit.
