Come and see our amazing products. The exterior of this water bottle is made of 201 stainless steel and the interior is made of 304 stainless steel. It has a fine filter and its airtight lid allows it to be carried around. In addition to that, the bottom of the water bottle is non-slip. This water bottle is perfect for printing logos for business use or as a business gift for others. Pls confirm with us about the packing info, stock color and exact production time before placing your order.