This is an Alpha Industries MA-1 flight jacket. The model number on the tag is TA1340-8001. It's unlined, so I think it's thin and easy to wear. I recently bought it on Mercari, but the armholes and such were a little tight, so I'm putting it up for sale. I usually wear a size M in Alpha and it fits perfectly, so perhaps this product has a slightly slimmer design. The condition shows some signs of wear, with wrinkles on the inside and some pilling on the sleeves and hem. The red tag is clean.