Created to be the safest and fastest-drawing Level II Holster on the market, the 5.11® Sig Sauer® ThumbDrive® Holster was designed with assistance from Blade-Tech® and tested in the field by the professionals at Viking Tactics®. Featuring our exclusive single-thumb release and retention system, the Sig Sauer ThumbDrive Holster offers a smooth, fast, and safe release, and our unique Chop-Block™ switch guard dramatically increases weapon retention capability during altercations. With fully customizable installation and our optional Drop/Offset and Thigh Rig kits (sold separately), the ThumbDrive Holster system allows completely user-defined placement and draw angles for superior safety and efficiency.