Uncle Mike's Off-Duty and Concealment 2 Layer Nylon Reinforced Instructor's Belt (X-Large, Black) Patented internal locking device keeps gun in holster under the most unfriendly conditions Holster bolted to belt loop for stable carry and consistent draw Belt loop with co-polymer stiffener fits over any belt and is anchored by two 1 inches Velcro keepers Velcro-adjustable leg strap with elastic segment expands during movement for comfort and good circulation Adjustable Velcro over strap covers non-stretch retention strap and molded thumb break, can be fastened away when not used Internal locking device provides positive retention under all conditions Injection-molded Thumb Break and Retention Strap will not stretch over time Molded tactical platform it provides a durable drop leg configuration for tactical operations Designed by leading tactical operators in the field