BEIS The Multi-Function Backpack in Beige. BEIS The Multi-Function Backpack in Beige. Faux leather exterior with nylon lining. Zip-around closure. Interior zip pocket, water bottle pocket, laptop slip pocket, 2 slip pockets and 1 key fob pocket. Removable front pocket converts into a crossbody pouch. Trolley pass-through. Padded shoulder straps. Measures approx 11.6 W x 15.25 H x 5.9 D. Imported. BEIS-WY59. BEIS320008. After countless trips and #Shaycations, Shay Mitchell realized that she wanted to create amazing, affordable pieces for travelers like herself who are inspired to seek new places, meet new people, and share the world. BEIS - pronounced base - began with the promise to give everyone the opportunity to pack up their stuff and hit the road with bags and accessories that wouldn't break the bank. From the gym to Jaipur, BEIS will never compromise on functionality or looking selfie-ready cool.