The Owala FreeSip Water Bottle is created for convenience, allowing you to quench your thirst on the go! Its triple-layered stainless steel insulation keeps your drinks cold for up to 24 hours. The FreeSip lets you choose your own adventure-hold upright to sip through the built-in straw or tilt back to swig through the wide-mouth opening. Just push the button to flip the top open and push back down to lock it shut (and keep out germs). The Owala FreeSip Water Bottle is crafted for people with an active lifestyle and is there to keep you updated. When it is time to clean, the lid and straw are dishwasher safe while the cup should be hand washed.