This is a gorgeous trench coat from Ralph Lauren Chaps.

Made of a cotton and poly poplin blend, it is a light olive-gray.

The coat has a black wool-blend zip-out lining, a double breast, buttoned flap front pockets, a rear vent, epaulets, and belted cuffs. 

This coat is in absolutely NEW condition. I believe it has never been worn, and everything about it is NEW. It is guaranteed to be authentic and absolutely perfect. 

Marked 42R and meant to fit over your 42 suit or sport coat.

It measures 26 inches armpit to armpit, 35/36 inches from mid-collar to the end of the cuff, and 48 inches from the collar seam to the bottom of the back. (All measurements done across the back with the coat laid flat). 

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