Efficient fold-over Velcro retention strap keeps gun in place, releases quickly with thumb; meets retention requirements of some jurisdictions. Unique, ultra-thin four-layer laminate no thicker than conventional suede leather holsters. Internal moisture barrier won"t transmit perspiration to gun. Suede-like exterior helps anchor holster inside pants or skirt. Belt clip slips over pant top and belt to hold gun securely and anchor gun for positive draw. Size: 12 - Glock 26, 27, 33, & other sub-compact 9mm/.40 Cal