Ratchet style buckle means no holes on belt and easy micro-adjustment without remove strap out of buckle. Simply push the small knob under the buckle to loose or tighten belt. Belt width is 1.3" or 34 mm. Top material and lining side is made with Vegan, non-animal, Cruelty-Free Material, but feel just like leather. Filler of the strap is made of leather inside for softness. Buckle in a matte gun-metal finish.