The Kuhl Men's Flakjak Longsleeve Shirt is designed with a 70/30 cotton-nylon blend for easy care, durability, and a soft hand. To accomplish your mission, you'll need some improvements to your basic equipment. Kühl’s Rhino Technology is tough armor like fabric on the outside and skin-like flexible fabric on the inside giving a natural stretch for freedom of movement and comfort. This shirt features Kuhl engineered articulated elbows with stretch panels and a center back stretch panel gives you even more range of motion. The Flakjak will keep you on course to complete your mission.