I made two pairs of boots built on canvas deck shoes.  I built up the soles with thick shoe crepe, and armored them in leather. The corrugated knee covers are leather, as well as the flexible boot horns.  I have found that a more reasonable way to get good boots is to start with decent riding boots and add on the Klingon embellishments.  Since I am not a cobbler,it makes sense to get good fitting footwear, then add the necessary Klingon accoutrements.  It's also more cost effective..  I have both kinds pictured.  Can you tell which is which?'