This Eddie Bauer Mountain 2.0 shirt is perfect for outdoor activities, whether it's hiking or layering to keep from sunburn. It has Travex, a cooling, textured fabric, FreeDry moisture wicking and FreeShade UPF 40 sun protection. The sleeves are roll tab, so they can be long or rolled. It has a hidden key pocket and 2 front button pockets. The back has a vent to help keep you cool and allow for windflow. The fit is Classic, and it is a loose and oversized fit that could accommodate a Medium as a well. Measurements: p2p: 20" Length: 28.5"