Bianchi 6D ATB Waistband Holster - Glock 20 21 (Size:16) Adjust-a-Fit thumb break adjusts to multiple handguns Inside waistband, hi-ride, strong side or cross draw Double stitched for strength an durability; open muzzle Heavy duty spring-steel belt clip for reliable security; fits up to 1.75" Inside waistband, thin profile design for concealability Double stitched seam in welt area for strength Strongside or cross draw High ride Heavy duty 1.75" (45mm) clip keeps holster securely in place