Klean Kanteen Classic Stainless Steel Bottle With Sport Cap (2 Pack) Bundle of 2 Items: Two 18 Ounce Klean Kanteen Classic Stainless Steel Bottles with Sports Cap Large 1.75" (44mm) opening fits ice, easy filling and pouring Electropolished interior doesnt retain or impart flavors Safe, durable, high quality materials Portable, reusable, and recyclable