BEIS The Mesh Beach Tote Bag in Black. BEIS The Mesh Beach Tote Bag in Black. 100% nylon. Top magnetic closure. One main compartment. Interior webbing key leash. Webbing handles that also double as hat or towel holders. Webbing shoulder straps. Measures approx 15.75 W x 15.35 H x 7.3 D. BEIS-WY412. BEIS139601. 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. BIS - 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, BIS will never compromise on functionality or looking selfie-ready cool.