FREESIP TECHNOLOGY - Welcome to the future of drinking. This insulated water bottle with straw puts the power in your hands: sip or swig. The two-way straw lets you sip water or the wide-mouthed opening to chug to your heart’s content. The choice is yours. OPENS EASILY - All it takes is the push of a button. Press to pop the lid open and push down to secure it shut again. Easy peasy. SAFE materials - Stay worry free with this quality, stainless steel bottle. KEEPS WATER COLD - The FreeSip has triple-layer, 24-hour insulation.