A leak-proof cup with a straw that tucks away to stay clean throughout the day. It’s the little things. Toddlers and messes go hand in hand, but you can eliminate at least one kind of leak with Munchkin’s Click Lock sippy cups, which come with a 100% leak-proof guarantee! These innovative toddler cups have flipping straws and feature a simple locking lid that closes to create a leakproof seal. You can see, hear and feel the cup lock in place, so you have triple assurance against dribbles and drips. Munchkin even backs this no-leak promise with a 100% replacement guarantee. Secured, and rest assured - this might just be the sippy cup of your dreams.