Come and see our amazing products. This thermos bottle is made of 304 stainless steel.Hot water can be kept warm for more than 6 hours,and cold water can also be kept warm for more than 6 hours.The vacuum stainless steel has good thermal insulation effect,multi layer thermal insulation layer,no overflow.Reusable,suitable for hot coffee,iced coffee,hot drinks.Custom logo is welcome. Pls confirm with us about the packing info, stock color and exact production time before placing your order.