I’ve had the 40-ounce stainless steel tumbler for around a year and a half, and it’s the only one I use exclusively at work. Right now, the popular tumbler is 30% off on Amazon, putting it at ...

Made of BPA- and phthalate-free material, the Owala Stainless Steel Tumbler will keep your water cold for hours. It has a two-in-one lid that lets you sip from the straw or swig from the cap.