If you own a koozie already, it's highly likely that it came pre-attached to a can at a festival or a carnival or a party—meaning you had no part in the decision-making process behind the choice of color, design, message, or material. This summer, take your koozies into your own hands by finding one that fits your vibe. Feeling beachy? Put a mermaid on it. Feeling sassy? Send the world a message. Feeling sustainable? Get one made out of wood. But most importantly: Feeling hot? Get one that keeps your drink cool.