FLIP-TOP STRAW TRAINER sippy cup with soft silicone bendable straw is a great introduction to straws and features an integrated slide cover to keep straw clean when not in use DOUBLE-WALL INSULATION keeps drinks cooler longer NO-SPILL STRAW SIPPY CUP - Gentle sipping activates the ...FLIP-TOP STRAW TRAINER sippy cup with soft silicone bendable straw is a great introduction to straws and features an integrated slide cover to keep straw clean when not in use DOUBLE-WALL INSULATION keeps drinks cooler longer NO-SPILL STRAW SIPPY CUP - Gentle sipping activates the flow for spill-free drinking. Please note, silicone has a natural tendency to self-heal. To ensure optimal suction, please massage straw vent with fingers to ensure it’s open prior to use EASY TO GRIP cup has ergonomic indents for proper hand placement, and the contoured shape is easy for kids to hold Suitable for children 12+ months