I really like this white Charles River Apparel rain jacket. The jacket is made of 100% polyester and is very thin. It is not going to keep you warm, but it should keep you dry. The first thing I noticed when I tried this jacket on was that is very wide to be a medium. It measures about 23 inches wide at the base which is very wide for a medium. The sleeves are about 24 inches long. Since it is made on the larger size it could be worn over a jacket that you would wear in the winter.  Made in China.