This Mug is made with adventure-friendly stainless steel. With a glossy white enamel finish, a spill-proof and snap-on cap, as well as a lined-in insulating plastic. 

.: Material: 100% stainless steel with a glossy white enamel finish
.: One size: 14 oz (0.41 l)
.: Inner plastic insulation
.: Spill-proof snap-on cap
.: NB! Hand wash only