simms gear is top notch, but very expensive. it is tough to beat gore-tex for staying dry. I mean, really staying dry! what I like about the Simms G4 Guide is the pit zips. It is the only Simms jacket with them which is unfortunate since the retail lists at $500. if you look at Skiing and Snowboard jackets, pit zips are standard issue.

I own the Simms Classic Guide, but I will admit it is a little bulky for bankin' and bush whackin. the G3 and G4 are lighter, but more $$$.

I have owned inexpensive Columbia Sportswear rain jackets, but find that they do not breath well and get you wet in a total all-day downpour.