One of the recycling-loving Mashburn girls discovered this cheerful, endlessly reusable coffee cup in London… and pretty much hasn't taken it out of her bag since. It's made of bamboo fiber, one of the most sustainable resources on the planet. It's dishwasher-safe and naturally sterile, so it won't taint the flavor of your coffee (or tea) (or hot chocolate! it's your life!) And since it's super-lightweight, there's no excuse not to take it with you.