Thanks for the response Meadowlark.
I was considering the Foreverlast boot in a larger size, to accomodate the waders, and would use wade socks with them in the summer time.
The Encounter boot is available in a rubber sole.
I do admire the quality and workmanship of Simms gear, but it's outside my humble price range. (You probably couldve guessed that by my dual-purpose wader boot question, haha)