Ralph Lauren swing top, vintage style, navy color. US-S size, so it's likely equivalent to a Japanese M size. It was a perfect fit for me, who is 170cm tall and weighs 60kg; the sleeves were long, so I wore them folded up once. I'm not very knowledgeable about clothing, so I've included images with a measuring tape for size confirmation. From new, it had a slightly damaged facade for a vintage look, a corduroy collar, and I liked the letters on the lining. I wanted another one as a spare, but it seems to have been a rare import item, and I couldn't find it. I bought it new about 15 years ago, wore it a few times a month for 5 years, and it's been in the closet for the last 10 years. It's a used item with a certain degree of wear and tear, so please check the condition in the images and consider it after you are satisfied. Please refrain from price negotiations. I will ignore comments requesting a price reduction.