The Caldwell Tac Ops Duty Belt is built with semi rigid nylon that wont warp or bend from use. Full width and length hook & loop attachment makes this Duty Belt infinitely adjustable. Two sliding keepers per end of the belt keep folded hook & loop end secure and free from snagging other equipment. The Secondary push button lock keeps buckle from any accidental disengagement. Medium = 34-42 waist, Extra Large = 48-56 waist.