I agree - the ones in the links you attached aren't meant to keep water out at all. as someone else posted above, when we use them for diving, we get wet - we just don't get cold. They also have very stiff bottoms of either thick felt or thick rubber, since another major reason to wear them is to keep from cutting your feet up on the coral on the way in and out of the water. Mine don't have any flexibility in the sole.
Originally Posted by AndreaReina
They do make "drysuit booties" that are basically latex socks for keeping your feet more dry (and warmer) when diving in cold water - they're a little pricey, but might work inside your normal shoes?....best to try locally - looks like there's a place called "the Dive Shop" is in Wellington....
"Do or do not do, there is no try" - Yoda