Thank you for viewing! This is a knit vest that can be worn both front and back. I don't see any stains, but there are a few areas with some pilling. Please refer to the photos. Instant purchase is welcome! Even if you've commented, I will prioritize the person who purchases first. Please refer to the size guide images (please allow for some margin of error). The tag says ③. I usually wear a size S. Please note that the colors may vary slightly because I took the photos at home.