A "flannel shirt" is a type of shirt made from soft, warm, and cozy fabric called flannel. It is often worn in colder weather to keep you comfortable and snug. Full definition
Who says that a country girl can not rock a plaid flannel shirt with a tulle skirt. (outfittrends.com)
I also got this great flannel shirt in a few colors and some in tall, because the tall version is very boyfriend - y and I like to layer them with leggings. (littlejstyle.com)
Teen girls love to wear flannel shirts at school and college and they knew how to style them in many different ways. (justtrendygirls.com)