Originally Posted by jaybo41
One more thing to add, the G4's have been updated for 2013 and are using a lighter Gore Tex material, so depending on size needed and availability, you might just find the 2012 models on sale for not all that much more than the G3's.
Yeah, that is the deal I got last August. I did not know the difference and I am glad I have the thicker pair as I use them for streelhead.
Also, as Jaybo states fit is critical. Simms offers many combinations of size. Just follow their instructions and you should get a pair that fits perfect. I am of Welsh blood meaning my shoulders are wider than my legs are long, and Simms had a pair that fit perfect.