Contigo Autoseal Kids
This is THE sippy for older kids. It looks cool, keeps drinks cool, and is absolutely leakproof when the vacuum-sealed valve is closed. When kids push the button on the back, liquid flows freely until the button is released. The insulated design keeps drinks cold on a hot day, and the smart, simple design is hip enough for kids who aren’t quite old enough for a water bottle, but too grown up for a traditional sippy cup. The 12-oz. capacity is also a bonus for thirsty kids as well.
Get it from Amazon, $17.99