The shirt is designed to be worn under body armor providing comfort and protection, it also be great for sports / workouts. 
The main body part adopts drip-dry fabric, very comfortable touch, breathable and ventilative. The sleeves adopt T/C, rip-stop, very durable and provide more protection. And the pocket on the sleeve is with the design of side placket with hook&loop, which is more convenient to use.
It can fit for all types of wear, providing great range of motion.