This is a wool-blend letterman jacket from POLO RALPH LAUREN, purchased in 2022. I believe this design is not widely available, as it was only sold at a limited number of stores. The size is M. I bought it but rarely wore it because I didn't want to, and I finally tried it on this year, but it felt too tight... so I'm reluctantly letting it go. It's in excellent condition, as I've hardly worn it.