Come and Check Our Branding Solutions.This mask is made of polyester, it has the feeling of silk. It will give you a great sleep experience, and be able to sleep quietly and easily. This Eye mask can be used in many scenarios like traveling, Hotel-stay riding, on the train & plane& cruise liner, etc. The feeling of silky Polyester Satin fabric covers your eyes is similar to silk. Elastic strap stretches fit for most people. The price includes the shipping cost to ca, QTY over 20000pcs by the ocean. Pls check inventory and detailed info before placing your orders.