I've never tried the L. L. Bean Kangaroo Boots but I sure enjoy their older Maine Guide boots with the quick latching hooks no longer offered.
Pictured below are mine that I've had 49 years. (I got 'em just before I got married.)
They are on their 4th set of bottoms. Bean in Maine where I send them back for new bottoms said they couldn't do another set of bottoms.
Not good for real cold weather but OK for 40, 50 degree days and not too wet.
Hope maybe there's another 7 or 8 years left in them. And me!