This is a new with tags Polo brand Madras shirt in a orangeish-red, blue, and green plaid. It has a slubby feel to it and is a loosely woven fabric. It's 100% cotton and the tag says to wash in cold and tumble dry on low, but I might dry it flat to prevent shrinkage or buy it a little big in case of shrinkage. It was at a thrift shop but was out in the sun, but it hasn't been washed because I didn't want to remove the hang tag. I recommend washing it immediately upon receiving it.
I'm guessing it's a girls' shirt because the tag says 12, but it's like an XS or XXS adult women's top.
It comes from a non-smoking home with a pet.