A glossary of terms you might not be familiar with.
Chambray - a linen-finished gingham cloth with a white weft and a colored warp, producing a mottled appearance. It was initially a fabric made of linen, but has since been applied to cotton.
Faux leather, or Polyurethane (PU), is a man-made material will represent the look and feel of genuine leather. It can be embossed with any texture, is water resistant, and easily cleaned and maintained. ... Some call PU "synthetic leather".
Neppy - When a garment is neppy, or has nep, it usually just means that the fabric of the garment has been woven in a way that some of the cotton fibers extend and protrude from the main surface.
Outsole is the outermost layer of the sole of a boot or shoe, especially an athletic shoe.
Pu leather is short for polyurethane leather because the coating on this leather is made with polyurethane. It does have a layer of real leather in it, but the layer of leather has been split (hence the name, split leather) so the layer of real leather is thinner than with genuine leather.