Description:Small and lightweight, the 12oz Klean Kanteen® Classic is great when space is limited. It's the perfect size for juice and other naturally sweet drinks, rumor has it that grown-up Klean Kanteen® fans commonly use it as a flask, and with our adapter and Avent Sippy Cap, it converts to a safe, BPA-free sippy for kids. Like every Klean Kanteen®, the 12oz Classic Kanteen is made from high quality, 18/8, food-grade stainless steel that's totally free of BPA and other toxins. Because stainless steel itself is safe, we don't need to coat the inside of the bottle with a plastic or epoxy lining, which is one of the main differences between a stainless steel Klean Kanteen® and aluminum bottles. Food-grade stainless steel is used in the brewing, food and winemaking industries too. It's the material of choice because it doesn't retain or impart flavors. No matter how many times you refill it, no matter what you put into it, your Klean Kanteen® will keep your drinks fresh, crisp and clean tasting. All our caps are BPA-free too, and we offer stainless steel cap options for Classic bottles as well. The 12oz Classic is also available with the new and improved Sport Cap 2.0 that's six times stronger and more impact resistant.