This is a Mens Eddie Bauer Lightweight Vest for the Outdoorsman. The tag reads size XXL but please judge by the measurements. The vest measures: 23.5 inches across the chest armpit to armpit lying flat, and 23 inches down the back from the bottom of the collar to the bottom of the waist. Lots of pockets, inside, and out, front and back. Single snap closure midfront. GREAT vest for the fishing, hunting, or outdoorsman!