This is a great vintage condition wool shirt jacket from Bemidji Woolen Mills. Beautiful deep blue and black buffalo check pattern. There's no fabric tag but it's clearly wool. Measures 21" pit to pit, so in my opinion a bit large for a women's medium but small for a men's. This was purchased as vintage by my husband and looked great on him. Someone pointed out that it buttons like a women's shirt. It does not have a gendered cut and is just really practical and the blue is pretty in person.