Kick butt and take names... on the go! These 20 and 30 ounce powder coated tumblers are double walled and vacuum sealed to keep hot drinks hot and cold drinks cold for hours. The sweat-free textured powder coat technology will keep the outside of the tumbler at an easy-to-handle temperature so your hands won't burn or freeze when handling it. The tumblers have a 24 hour cold retention rating and are made of BPA free materials. These also make great gifts for any occasion due to their functionality and versatility.