Quickfill™ Lid: Ditch the hassle of unscrewing lids. Instead, pop it open for swift, convenient refills in seconds, keeping you on the go without missing a beat. Dual Sip and Chug: Pop & Fill adapts to your hydration needs—sip through a straw with a push of a button or pop it open for a hearty chug. 100% Leak-Proof: Carry with confidence! The bottle features a secure, leak-proof seal, allowing you to toss it in your bag worry-free. The added locking mechanism further ensures spill-free peace of mind in backpacks, purses, and gym bags. Dishwasher Safe: Keeping your water bottle clean has never been easier. All parts of Pop & Fill are dishwasher safe making cleaning a breeze.