I found an older Contigo by the side of the gravel bike path. It had been there a month, and maybe because of Covid, no one picked it up. I was not too proud to take it home when I saw it a second time. Would you believe the water inside was still cold?
Nah. It was dry, so I sterilized the heck out of it and put it back in service. Keeps ice for 8 hours outside. Good design. steel insulated body. No leak plastic top, I hear they cost about 20 bucks.