Shop Mens at RalphLauren com the Official Site of Ralph Lauren Performance Jersey Shirt - Made from a moisture-wicking Pima cotton-blend our Performance Jersey Shirt is slightly more relaxed than our Custom Fit but more trim-fitting than our Classic Fit It also has a hint of elastane for extra stretch Slightly more relaxed than our Custom Fit but more trim-fitting than our Classic Fit Size medium has a 30" front body length and a 32" back body length Ribbed collar Three-button continuous placket Short sleeve