The Elite Combo Holster was designed to either clip onto the pants, or be threaded onto a belt. This holster with mag pouch is built to last - constructed of 1000 denier padded nylon for maximum durability. Constructed of 1000 denier nylon Spare mag pouch with hook and loop closure Mounts on pants with removable belt clip, or thread on belt using belt slot Adjustable retention strap with snap Thumb-Break Gun and magazine combo holster is available in two sizes, right or left hand Holster with magazine holder made in the USA Sizing Information: Size 1: Fits full-size autos including Glock, Sig Sauer, Ruger, Beretta, H&K and similar autos Size 2: Fits compact and sub-compact autos including Glock, Sig Sauer, Ruger, Beretta, H&K and similar autos Size 3: Fits Glock 42/43 Size 4: Ruger LCP and similar .380 pocket pistols