I’m a big fan of the simms guide jacket for a bunch of reasons but one thing in particular is the cuff. The gasket and velcro style allows it to be wrapped tight to wrist (similar to other styles and manuf’s) but the overcuff really helps keep that area dry. Aside from material and quality etc, many jackets seem to have a different cuff and those were always problematic for me in a heavy rain and any long sleeve shirt seemed to wick the water right up your arms, but that guide jacket cuff seemed to work well. Never been to AK but this is my exp with fishing or being out in heavy rains