![]() FAQ - Frequently Asked Questions Q: What is PU, Patent, Stretch, Leathers materials in your shoe line? A: PU is short for Polyurethane, which is a wonderful man-made material for shoes. It can be semi-shiny to a non-shiny finish. It is sturdy and durable, yet light and comfortable to wear. Patent has a very shiny finish. Stretch, either patent or PU, is a thin, stretchable material, which allows it to fit the contours of the feet and legs. Leather is a natural product, which is supple, comfortable with a textured pattern, which is highly prized in the world of shoemaking. |