Cordura nylon with belt loops on both sides of holster. Models to carry and conceal small to very large handguns comfortable. Flattens profile for optimum concealment. Medium high ride design positions gun for smooth draw. Extra thin laminate for minimum thickness. Holster conforms to body contour for comfort, concealment. Molded thumb break and non-stretch retention strap. Butt forward strong side carry. Converts from right to left just by reversing Velcro attached thumb break and retention strap. Both thumb break and retention strap are protected by strap traps to prevent loss of straps detached from Velcro and to prevent chafing by Velcro material; adjustment tool included.Size Chart16 - 3 1/4-3 3/4 Barrel Medium & Large Automatics