The ASH Tactical Glock 21 Standard Kydex Holster is designed from the ground up for concealment, comfort, and ease of draw. Finding problems with other holsters on the market we designed ours to make sure the customer will be satisfied with the fit and draw. Compared to leather or nylon holsters you get a far better retention, less wear and tear on the firearm, and an instant perfect fit. Kydex can be easily washed out with water in the event you get dirt, or debris inside of your holster, unlike leather of nylon. Each holster is made using a 100% replica of the original gun and is guaranteed to fit or you can return it for a full refund.