This is a gorgeous shirt from Vineyard Vines.

Made of 100% cotton, it's a beautiful preppy gingham check in pink, blue and light green.

This shirt has a button-down collar, single-button barrel cuffs, a left chest pocket, the whale on the tail, and a squarish tail. 

This beautiful shirt is in MINT condition.  It is guaranteed to be authentic and absolutely perfect.

Marked Small.

  I measure each item before listing it and the measurements for this shirt are: 

The neck measures 15-15.5 inches from button to button hole.

 The sleeve length is 33/34 inches from mid-collar to the end of the cuff. 

Across the back, laid flat, the shirt measures 20 inches armpit to armpit and 31 inches from the collar seam to the bottom of the back tail.