Good looking Alpha Industries, new with tags, Sherpa reversible coat. Reverses to an army green ripstop. 

Size XS.  I am a fairly consistent small or size 4 and this is snug on my frame. So it appears to be a true extra small. 

Measurements are approximate:

Shoulder across is 16”
Sleeve is 25 1/4”
Length is 36 1/2” from neck to hem. 

Incredibly well made. Nice details.