O'Neill 3mm black vest. It has a back zipper and is for surfing. I am selling it because it was a little too small for me. It was a little small for me at 170cm and 64kg. I bought it used about 5 years ago and only used it twice. There are no cracks, so I think it can still be used. - Brand: O'Neill - Color: Gray/Black - Design: Back zipper - Style: Sleeveless - Intended Use: Surfing Thank you for looking. The size is ML. Please check the photos for the actual measurements.