The Simms Zip It Bootie has corrosion resistant zippers, goes on and off fast and fits tight enough to wear barefoot or with a thin sock. The bootie packs nicely being part neoprene and part vulcanized rubber.
The fit is close unlike your river wading boots so don't size up unless you are putting a sock on underneath. We like the Simms 1mm neoprene sock the best. The EVA sockline and full length lasting prevents punctures that might make a saltwater trip run short.