Bianchi 131 Confidential Holster Black. To maintain optimal flexibility in the thumb break the strap is suede-lined while the synthetic liner encompasses the rest of the holster. Offered in Plain Tan or Plain Black finishes and fit 1.5 (38 mm) belt widths. Specifications for Bianchi 131 Confidential Holster: Manufacturer: Bianchi Age Group: Adults Package Contents: Bianchi Model 131 Confidential Holster The Bianchi Model 131 Confidential Holster is a quality addition to the Bianchi lineup. For more great deals on Appendix Holsters by Bianchi please browse our Bianchi Holsters page. What firearm models does the manufacturer say Bianchi 131 Confidential Holster is compatible with? The manufacturer says that Bianchi 131 Confidential Holster is compatible with SIG Sauer P320 Compact Heckler & Koch VP9 SIG Sauer P365