Frank Green 12oz Reusable Cup There is nothing better than a beautifully designed, lightweight, and durable reusable cup for when you’re on the go. The 12oz Reusable Cup from Frank Green is perfect for having your morning coffee or afternoon tea. It features a clever push-button lid which is easy to open and close. And you can relax knowing that it won’t spill in your bag and that it fits in standard cup holders!