- We guarantee this is an authentic LOUIS VUITTON Epi Porte-Documents Voyage Briefcase Black or 100% of your money back. This stylish documents briefcase is crafted of Louis Vuitton signature textured epi leather. The bag features smooth rolled leather top handles with silver links and a wrap-around zipper. This opens to a leather interior with zipper and patch pockets. This is an excellent case for personal or professional use from Louis Vuitton!