Zen,

I learned, many years ago while trapping beaver throughout the NW, that the FIRST thing I do when a new pair of hip-waders is purchased is to cut out the knee tie-straps.

Never use them, as when (not IF, but when..) you fall off that beaver dam (or out of a boat) you can not ge the waders off when they are tied on to your knees.

Use the belt snap straps, as they can readily be unsnapped and the boots kicked off while in the water. Had to do it more than once...in the coldest of water too!

Mike