Insulated Rim Spout Trainer: Narrow, bite-resistant rim spout with ergonomic shape helps toddlers sip confidently and comfortably Keeps Drinks Cooler Longer: Double-wall insulated cup keeps water, milk, and juice refreshingly cool, so kids stay hydrated throughout the day Less Mess, More Control: Sip-activated no-spill flow prevents leaks on clothes, car seats, and floors; remove valve to advance to free-flow drinking Easy for Little Hands: Lightweight 9 oz / 260 mL cup with ergonomic finger indents and slim, easy-to-grip design encourages independent holding and tilting Mix-and-Match Convenience: Interchangeable tops and bottoms let parents customize colors, replace lost pieces, and create a favorite cup their child loves Hassle-Free Cleaning: Minimal parts, all dishwasher safe (cap, spout, valve, and cup) for fast, easy cleanup after every use Made for Growing Toddlers: 12+ months, ideal for everyday meals, preschool, playground outings, and family travel