This shirt is great!  I absolutely love this shirt.  Besides fitting me perfectly and comfortably (in available extended sizes), I have it in an ideal earth-tone colour too that just blends in.  The shirt has a crisp appearance even with minimal maintenance (mostly wash and hang), and an outstanding durability which at least equals military issue uniforms.  The thick ripstop fabric similar to ACUs or the old BDUs wears like iron and can even serve as a outerwear coat in some climates.  It's a notch or two above a normal civilian shirt.

The shirt has two pleated chest pockets with flaps (one with a pass through for pens), 2 "hidden" map/document pockets also big enough for a small holdout (secured by Velcro), and an additional 2 pen/penlight slot pocket on the left upper sleeve.  The long-sleeves with adjustable button cuffs can be rolled up and secured with a buttoning loop.  The collar has hidden button down stays.  The back has a hidden mesh panel and ventilation flaps.  The fine detailing on this high quality shirt is impressive, like double stitched seams, matching colour buttons, button spares, hang up loop, reinforcements, and even optional sew-on epaulets and badge tab are provided (so it literally can be used as uniform wear).

Because this shirt has a clean classic line and neat appearance it is very versatile.  I use it for comfortable travel wear(with a vest), casual dress (with tie, slacks and jacket), tactical/outdoor wear (with body armour and operator pants), and cold weather use (as a mid layer).  The cotton and back vent just feels comfortable.  Long-sleeve shirts are more protective (from the elements, solar radiation, fire, dust/grit, insects, even abrasions and cuts) and remember, a long-sleeve can roll up and become a short-sleeve shirt, but not vice versa.  It's the best shirt I own, and I've already organized my EDC gear around this shirt.  It's many pockets let me discreetly carry a surprising amount of flat objects, notebook, smart phone, sunglasses, and even "hide" things that a casual inspection will not detect (maps, passport, non-metallic tools).  The flaps and Velcro closures on the pockets keep your gear in, most dirt and detritus out, and discourages pick-pockets.

I have no real complaints about it, not even the price.  It is a good value for what it is designed for, rugged duty by professionals.  Maybe the fabric is a bit heavy, but I figure it is versatile, durable, easy care shirt that will last a long time.  I always recommend clothing in layers, but despite it's cooling features (like vents and roll-up sleeves) it tends to be a warm shirt, like if you're in a hot environment (day desert).  Would I buy this shirt again?  absolutely without hesitation.  Once you see and feel this shirt, you'll recognize instantly how this shirt exceeds anything that you can pick up at the mall.