Silver Buffalo NL114397 Double Wall Stainless Tumbler w/ Lid, Periwinkle, 16 OzThe Silver Buffalo Stainless Steel Tumbler features double wall and vacuum insulated technology that keeps your beverage hot or cold for hours. Comes with a straw and closing flip lid, this tumbler allows you to hydrate in style while on the go or at home! Capacity: 16 Oz Color: Periwinkle Double wall and vacuum insulated technology keeps drinks hot up to 4 hours cold up to 12 hours Comes with a straw and closing flip lid Made of durable toxin free