Come and see our amazing products. The neck-hung wallet, travel bag, passport holder is made of polyester, which is very waterproof. It has two sides, side A is blue and side B is black. There are 2 zipper pockets on each side, you can put your mobile phone, passport, card, trash can, keys and other accessories. The neckband is durable and adjustable. We welcome customized logos, please contact us. Pls confirm with us about the packing info, stock color and exact production time before placing your order.