The belt loop is glued then stitched on with heavy duty waxed nylon. Then glued together, stiched up and dyed. The final touch is some bees wax which waterproofs and conditions the leather and brings out the full colour.
The sheath is thick 5mm vegetable tanned leather from Clayton's Tannery in Chesterfield.
The welt (cutting out left) is what protects the stitches from the blade. The shape of the welt is really important. It means the knife will fit snuggly and not fall out.