I chose the cheapest combat shirt I could find on here, and for $40 this turned out to be sooo much better than those $30 BDU jackets. Wear a longsleeve or a tshirt underneath for cold weather and you're all set. For hot weather, the od green part is quite breathable but the sleeves can get somewhat hot. Sleeves are sturdy fabric and have pockets in them, very useful for storing maps and such. You can adjust the width of the sleeves' ends with the velcro flaps. I usually wear medium tshirts etc but I went with Small because of the reviews, and it's a just fit.
Rating: [5 of 5 Stars!]