Alpinestar Bionic Back Protector with optional chest protection. Size on the chest protector says "S/M". No sizes on the back protector but with the exception of an extremely large individual I think it's a pretty universal fit . I wore both under my 1 piece leathers for track days back when I was still 6' and 190 lbs without any problem. Overall everything is pretty much in "like new" condition" Message me with any specific questions you might have before purchasing.
