Just a heads up.....I saw that Yeti just won a lawsuit against RTIC (I think it's the company that sells the knock off stainless steel tumblers at Walmart) and RTIC agreed to immediately stop selling it's products.
I'm wondering if similar lawsuits are in process against other competitors like Polar Camel (sold by JDS).
So if you sell a lot of stainless steel tumblers, you might want to stock up before all the cheap ones are gone.