. . The original Long Sleeve 5.11 Tactical Shirt sets the standard for multi-purpose tactical apparel worldwide. Worn by police, fire, and military. . professionals across a broad range of disciplines, this stylish cotton polo shirt combines field-tested resilience and top tier tactical performance with a. . handsome, low profile design. Built from tough and breathable 5.4 oz. cotton canvas, the Long Sleeve Tactical Shirt features triple stitched construction. . and 26 inidual bartack reinforcements for extreme durability in any environment. 5.11 Hidden Document Pockets provide quick access to concealed gear,. . pen pockets at the left sleeve offer quick convenience, and an integrated cape-back Drillex® cooling system keeps you dry and comfortable all day long.. . Superior tactical utility, low profile appearance. . Integrated Drillex cape-back ventilation. . Moisture wicking technology. . Patented Hidden Document Pockets. . Pen pockets at the left sleeve. . 5.4 oz. 100% cotton canvas. . Triple stitch construction. . 26 inidual bartack reinforcements. . Hidden button down collar. . Melamine buttons won’t burn, crack, or melt. .