Features- Double wall stainless steel structure, unbreakable& durable, Eco-friendly & non-toxic.- Vacuum interlayer, heat insulated; keep liquids hot and cold for 12 hours at least.- Fashionable & ergonomic design, attractive appearance & soft grip.- Wide mouth, it is easy to cleaning & accommodate into ice cubes.- Polish or color painting outer finish, we can do any color for customer's need.- Silk screen printing, embossing, stamping, lasering logo, all of them is available.- Eco-friendly ,FDA test ,SGS,100%BPA free ,LEAD free.