I use (black) duct tape and wrap it around the top of my bootie, covering the gap between it and my leg. Works great, duct tape comes off pretty easily and pain free (if you keep your legs shaved), and it takes a while for my shoes to get wet.

Most important thing is it prevents that nerve chilling drip of cold water traveling down your calf that feels like someone is drawing a big gutting knife down your leg. I don't mind getting my shoes wet from the bottom up but from the top down is horrible.

hydrophobic rider,
cdr