This is a gorgeous jacket from Vineyard Vines.

Full zip.

This coat is in MINT condition. It is guaranteed to be authentic and perfect.

Marked L. 

It measures 24 inches armpit to armpit, 36/37 inches from mid-collar to the end of the cuff, and 29 inches from the collar seam to the bottom of the back. (All measurements done across the back with the jacket laid flat). 

Please compare my measurements with a coat you have that fits you well.  You will NOT be disappointed.