The Munchkin 10oz Simple Clean Straw Cup is engineered for convenience and cleanliness. Its primary feature is the unique, easy-to-clean straw that peels open for a thorough wash and tucks away into the lid, ensuring it stays hygienic on the go. A one-way valve provides a spill-proof and leak-proof experience, making it a reliable choice for diaper bags and lunchboxes. This 10 oz cup is perfectly sized for toddlers 12 months and older, is BPA-free, and can be safely washed in the top rack of the dishwasher.