The perfect under carrier uniform shirt The V2 Pro Performance Shirt is a hybrid design developed, now in short sleeve, 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. 65% Polyester/35% Cotton, 3.9 oz double ripstop V2 Technology Mechanical Stretch with DWR stain repellent finish in the sleeves and collar 100% Polyester anti-snag jersey body, with wicking + anti-odor finish Woven sleeves No curl collar with integrated collar stay Running gusseted construction under the arm