I would dissagree with Magogwacker. I bought a pair of breathables last year, after I wore out my neoprene, and they held up nicely. I hunt the start of season to the end, in and out of boats, fields, blinds, etc... I also have used neoprene. Taking an extra second to be carefull how you do things, and they will last as long as any neoprene. I've ripped neoprene, its not invincible.
With that, they make great early season waders, but if your planning late season hunting a good pair of 5mm's will be handy to have. For neoprene I plan to replace my last pair of Cabelas Ultimate wadres with the same thing. However I'm waiting till its cold, the breathables will be on me in October.
Have you punched a PETA member today? Why not?