Sip from a straw or chug as much water as you want--the interchangeable spouts mean that you can choose the features you need for any situation. But no matter what you decide, there are plenty of features you can always count on: the lid has a hygienic cover to keep the spout clean, which opens easily at the push of a button, and disassembles for easy cleaning. Your grip will stay secure, with grooves molded into the sides of the 12-ounce bottle and a carrying handle built into the lid. And since it is made of durable plastic, everything is long-lasting, completely BPA free, and dishwasher safe. Do not microwave.