Jacket is tagged as a EU 50R, so roughly US 40R. It has dual vents and a two button front. The jacket is comprised of a cotton/flax mix in a bright blue color.
DISCLAIMER - THE FIRST PHOTO IN THE THUMBNAIL AND LISTING IS NOT MINE AND DOES NOT MATCH THIS JACKET EXACTLY. I included that photo as it much better represents the color and pattern to this fabric, the main difference is that the jacket in that photo has patch pockets where mine the the more conventional flap style pocket. I hope I can get better photos shortly.
The jacket originally retailed for roughly $1.3K so I believe $500 is a fair asking price, but feel free to shoot me any cash or trade offer.