207 ml. BPA free. Spill proof. Tip me! Drink from any angle! A cup with a flexible straw that's weighted on the bottom, so your baby can hold it at any angle and still get a drink - it works so well, we'd totally call it a cupgrade. It's the little things. Click Lock: 100% guarantee leak-proof technology. Click. Lock. For a leak-proof seal guaranteed. Stuff You Should Know: Weighted straw allows your child to hold the cup at any angle. Includes brush to easily clean straw. Flip-top lid is easy to open and close. Colors and styles may vary slightly. munchkin.com. Made in China.