Very cool, retro Hawaiian shirt. This one was made in Hawaii by Howie, 65% polyester and 35% cotton. I love the landmarks and map of the Hawaiian islands on the print of this shirt. There is a tiny spot of ink on the bottom of pocket, see photo, I have not tried getting it out.
Hawaiian shirts were called Aloha shirts by the islanders, here is some interesting information from Collectors Weekly:
http://www.collectorsweekly.com/mens-clothing/hawaiian-shirts
Measures:
Shoulders: 22
Chest: 50
Materials: polyester, cotton.
