I wanted this shirt badly enough to pay $25 for a T-shirt (probably a good sign of being a fanatic).  But, for the money I would have expected a Hanes Beefy-T or something similar.  This is an Anvil Knitware (?) brand shirt, and if I hold it up to the window I can see daylight through it.  Maybe it's cool in the sun, but I don't expect it will last too long.