I only wore this for a single day of pre-wedding photos. It was in the early fall, so I hardly sweat at all. I also didn't eat any meals while wearing it. I purchased this from the photo studio (LA-VIE factory in Aoyama) where I had the pre-wedding photos taken. I believe I was around 178cm tall and weighed around 70kg. - Brand: GENTRIND - Fabric: Made by TORAY GROUP - Size: M (38-88) - Material: 65% Polyester, 35% Cotton It's in very good condition, but upon checking before listing, I found a slight stain-like mark on the back of the neck area, as shown in image 6. However, it's a place that would be hidden when wearing a tuxedo, and it might come out if you have it cleaned again. Therefore, I'm selling it at a significantly lower price than what I paid for it. I plan to ship it in a size that can be posted, so please forgive any folding wrinkles. Please have it cleaned by the buyer. Thank you for looking.