AirCarbon Cocktail Straws are translucent with the look and feel of traditional plastic straws, but with one major advantage, they are the World's first Carbon-Negative straw. Made from AirCarbon (also known as PHB), a biomaterial that is made through out nature andhas been third party verified as carbon-negative. These straws are durable, reusable, FDA food contact approved, and are great in both hot and cold temperatures. BPI certified compostable in commercial facilities and TUV Austria certified to be home compostable.