NiB Owala 24oz Tumbler
24 oz. stainless steel insulated tumbler with "sip-or-swig" lid (see 3rd image, has both a straw and a lockable rim opening).
Very much the 'cool girl' water bottle this year (or, at least, last year, who can keep track). I received these by accident, and already have plenty of water bottles! But for all their hype, Owala bottle are great— they stay cold, fit in a cupholder, and are always on Wirecutter's best reusable water bottle lists. If you hate a plastic straw, there's a brand called Koala Straw that makes a borosilicate glass straw specifically for these.
NiB, box opened just to check the colors. These are apparently limited edition colors.
Everything in the second hand section comes from my own closet / home / adventures. I do my best to highlight any flaws or foibles, but there is a possibility I've missed something. Also, everything has been in a house with a dog and two cats, and while I do my absolute best to remove all fur... there might be a little fur.