Tip him up, and let it flow! Thirst waits for no-one. Our MontiiCo Sipper Lid, allows more H2O – faster! Our Sipper Lid can be used interchangeably with our Mini, Original and Mega Bottles – pretty rad we know. Don’t want to tip? Just simply sip? Our lids are leak-proof when closed, but don’t leave them open of the water will flow!