The Intimina Lily Cup is a collapsible, washable, reusable menstrual cup that creates an air-tight seal for 12-hours before you empty it, rinse, and reuse. No harmful waste and no airplane leaks! The cup takes some getting used to, but like almost every woman that tries it – once you use it, you’ll never go back. Your menstrual cup is a one-time buy. You don’t have to spend on tampons every month, and you don’t have to carry them in bulk on your trip.