Our 429 six inch studded posture collar is unlined and made with 7/8 oz leather. It comes standard with a roller buckle for easy adjustability. This leather collar also has a loop & d-ring for attaching any of our wide selection of leashes. It is very adjustable and will fit just about anyone, male or female comfortably. And as with all of our leather collars, this posture collar comes with our Dungeonware® lifetime guarantee and will be shipped to you very discreetly.