do these have a high rise?-husband has "plumbers" butt

We buy my husband's shirts at Duluth Trading they have long tailed shirts. I try to get them on sale. Good quality and selection.

what is the size of the bottom opening?

They are sixteen inches. They can be pulled over cowboy or engineer boots. As a comparison, boot cut are eighteen inches.

Are these jeans pre shrunk ?

NO my shrunk more then expected, I bought two sizes 40 & 42 didn't know which would fit better. Kept the 42's fit good before being washed after a little tight. Be advised.

my husband has them but on back pockets some are higher up than others what do i do to pick to know the difference

Check the style #. The last jeans I purchased on Amazon are the European cut (2008916 ) not the American cut (2008964). I called lee and they explained the different cut. I want the American cut.