One of the best moisture wicking fabrics on the market, this shirt will function just as well as a cold weather base layer or a stand alone shirt for warmer spring days. Sizing: Back body length (in): Small = 28.75 | Medium = 29.75 | Large = 30.75 | X-Large = 31.75 | XX-Large = 32.75 Model is 57 and is wearing size Medium
