The years I lived in Alaska, I kept two pairs of each, one set with rubber soles and the other with felt soles. Until Alaska figures out some way to stop the moose and bears, ducks and geese, from going from one water way to another, prohibiting felt waders is just a symbolic gesture, IMHO.
To add on to, the potential danger, mentioned by Hook, if you use chest waders, make sure you put a belt or bungee cord around the top to keep water from filling them if/when you slip and fall.
I had a couple of pair of stretchy rubber type chest waders custom made by the H.L. Leonard Co. When they were in business. They fit like a tight glove, were hot and sweaty, but much safer, IMHO.
joe b.
Stuart Florida
Formerly of Colorado and Alaska
2016 Fleetwood Flair 31 B Class A w/bunks
www.picturetrail.com/jbpacooper
Alaska-Colorado and other Trips posted
"Without challenge, adventure is impossible".