Road Bike Rider recently evaluated two winter cycling gloves, Craft's Siberian Winter Gloves and Pearl Izumi's PRO Barrier Winter Gloves. The Pearl's included a "bold claim" of waterproofness. Following the review, RBR reader Christine N. (hmm, could this be someone we know?) commented that the Pearl's were anything but waterproof having made the discovery on a cold, soggy 200k (sound familiar?). Apparently, the weight of the gloves tripled due to moisture collection. This weeks RBR (1/21/2010) highlights this shortcoming and provides some of the dialog between the RBR reader and the PI product manager.
RBR has invited their readers to comment on winter cycling gloves, especially those that perform well in wet conditions. I figure this group has MUCH to say on the subject.
Important to note is a strong endorsement for the Aerostitch Triple Digit Rain Covers for use as a waterproof glove shell. I think a pair of these will soon find their way into my gear bag.