This is a soft, nylon belt featuring a metallic, adjustable belt buckle adorned with Batman's Bat Symbol!  This belt is a one size fits most belt with the buckle layered in enamel, measuring 2.25" across and 1.5" high.  When does one wear the Batman web belt?  Why, when Batman tells you too. Which, I should warn you, will be most of the time.  Hey, you wanted to be the new Robin.