BLACKHAWK T-Series, L2D, Duty Holster, Left Hand, Fits Glock 20/21/37/38 w/TLR 1 or 2, Black, Includes Jacket Slot Belt Loop, Polymer 44N213BKL With its streamlined thumb-activated retention" the T-Series keeps your firearm at the ready while maintaining total security. Thanks to a drawing motion that operates off of the Master Grip Principle" you'll be able to get into the fight under even the most stressful of circumstances. A combination of reinforced outer polymer and smooth" sound-dampening" hydrophobic lining ensures your T-Series will perform no matter the elements and situation