Our Hot/Cold Insulated Drink Canisters keep your cold drinks cold and warm drinks warm. Period. Keep your water cool on that long hike, at your office desk; keep the tea and coffee hot on your daily commute or a weekend road trip. Attractive and very portable, comes 23 oz. that is 11¼" tall. Made of lightweight aluminum, with a stabilizing foam bottom which doubles as a coaster. They are easy to clean, with no hard to reach parts that gather mold, like straws or pumps. The mouth is just the right size, so the drink flows easily. Unscrew the top, drink it down. Simple.