if your looking for an inexpensive kneepad that's so comfortable
you'll wear them grocery shopping because you forgot there on
it's the simple sears green ones $5.00 otherwise go home depot....
boots in size 14 are a challenge to find i'm sure....
Just like running shoes, for COMFORTABLE hiking boots hit EMS/REI (both in RI) and try some on.
You can listen to people expounding the brilliance/lightness/ruggedness of every brand on earth, but if they don't fit you right, you'll never be happy.