Body: 6.5 oz 100% Polyester jersey; snag, fade and wrinkle resistant with wicking and anti-microbial finish Sleeves and collar: 6.9 oz, 55% cotton/45% Cordura Nylon mechanical 2-way stretch double ripstop with moisture wicking finish Sleeves and collar: 6.9 oz, 55% cotton/45% Cordura Nylon mechanical 2-way stretch double ripstop with moisture wicking finish YKK Zippers Duraflex Zippers First Tactical&';s Defender Series Shirts are the best of both worlds: performance built to handle any mission while maintaining the professional look needed when on normal patrol. In the performance department specialized pockets boast ample space for oversized gear, a specialize yoke eliminates unwanted bulk, and oversized sleeve pockets accept patches or embroidery. Creating the perfect warm weather shirt was at the forefront of design as articulated elbows, running gussets, and vented mesh locations provide advanced movement and breathability.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }