Sostanza Dark Blue/Green Medium L/S Button Down Shirt Vintage

I am selling a medium sized dark blue and green check or plaid button-down l/s shirt with a textured or crinkled fabric finish and pointed collar from the maker Sostanza. Tags have been included in the last 2 pictures. Item is probably 100% polyester blend, is probaly machine washable and was probably made in the USA. Item is in excellent condition as I see no rips or tears, however it has been worn and washed a couple times to my knowledge. Item probably dates back to the 1980s. Item measures approximately 19.25" from armpit to armpit X approximately 25.75" from top of item to the bottom.