No curl collar with integrated collar stay Running gusseted construction under the arm V2 Technology Mechanical Stretch with Teflon* stain repellent finish in the sleeves and collar The V2 Pro Performance Shirt is a hybrid design developed with input from Law Enforcement and Tactical Operators that combines our best selling Performance Polo with our V2 shirt. The result is a new lightweight base layer that is perfect for use with an external carrier.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }