No Rich, those LL Bean boots aren't gumrubbers or gumboots. Gumrubbers or gumboots are entirely rubber. The LL Bean boots, usually called Duck Boots, have a rubber bottom and a leather top. Gumrubbers are for mucking around in the barnyard mud or puddles, while Duck Boots are meant to keep your feet dry while hunting. They lace up and so provide better ankle support as you walk over fallen trees, down hills, etc.