BEIS The Packing Cube Set in Black. BEIS The Packing Cube Set in Black. PVC and poly exterior with mesh contrast. Breathable mesh window. 6 piece packing cube set Small, medium and large cubes with zip pouch and 2 shoes bags. PVC slot for ID includes paper labels. Water resistant lining. Measures approx 17.5 W x 12.5 H x 4 D. Imported. BEIS-WY19. BEIS119114. 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.