Vibrant turquoise blue blue button down shirt Medium

Very unique shirt purchased on a trip to India. Has collar and front chest pocket. Vibrant turquoise blue colour with a sheen (camera flash made it look shinier in the pics). Unsure of fabric but it has a sturdiness to it. Selling as my husband never had an occasion to wear it. Perfect condition. Could fit large see measurements. 25" armpit to armpit 32" long