Those Reptons are handgrade, which means they use finer calf leathers than benchgrade, have asymmetric last (which are more handsome), and feature oak bark tanned soles. Oak bark tanned leather is a type of hide that has been tanned exclusively from vegetable agents made from barks and fruits. The process takes place inside of an oak-lined pit that is ten feet deep. The hide sits in the solution for about a year. There are no mechanical movements, no chemical catalysts, and the solution isn’t heated; the hide just sits for a year. It’s a slow process, but the leather that comes out is very lightweight, very hardwearing, and very flexible. It is also highly water-repellent, but very breathable. This makes it perfect for soles.
The soles also have channeled stitching (which means the stitching is hidden), instead of ones that are stitched aloft (which means the stitching is visible).
In short, they’re better constructed, more handsome, and are made from better materials than C&J's benchgrade line.
ah handgrade - makes sense now. Thank you for the excellent explanation sir! (everyone —> follow and learn from derek)