This is a very sharp looking button down flannel long sleeve shirt from Dixxon Flannel Company. It's the Limited Edition Form And Function. It's pattern is in a handsome plaid design. The size tag says L but the measurements say otherwise- PLEASE PAY ATTENTION- It measures:
                                                      pit to pit- 24''
                                                      sleeves- 26''
                                                      length in back- 30''
This is consistent with at least a Men's XL so yes it does run bigger. Keep this in mind when determining fit. This is a really nice shirt and it's it's in excellent condition!