I bought this at a used clothing store a few years ago, but I don't remember the details. Therefore, the price is arbitrary. It has single stitching. The collar gives off a 70's vibe, I think. The tag says "Honolulu," so I believe it's an authentic Aloha shirt. Please refer to the photos to judge the buttons, tag, stitching, etc. Feel free to ask any questions. Aloha shirt Vintage 40's 50's 60's 70's 80's 90's