I’m not a big fan of plastic cups for my toddler, so we have easy drinking cups with a stainless steel base. What do I use for drinking on the go? Plastic! It makes no sense. A Miir Tumbler would be a much better option. Offered in black, white, stainless, and three colors, the MiiR Tumbler is a simple, well designed coffee/tea tumbler that gives back to those in need. In keeping with the company’s corporate sustainable giving platform, each tumbler provides one person with clean drinking water for an entire year through one4one.