GU Oversized Varsity Jacket Size M For details, please see the GU website product number (311-343918). A varsity jacket with a retro sports feel. It features a full lining and a design with two lines on the ribbing. The oversized design allows you to choose thick inner layers made of soft nylon material, so you can wear it for many seasons. The raglan sleeves, which are easy to move in, are also a nice point for daily use.