Do Not Buy is an ignominious rant against horrible crimes in men’s clothing. May contain: EXTREME SARCASM, DERISION, ANIMOSITY, MALICE, and/or PEEVISHNESS. Caution is advised.
Somewhat politically named, the “A-Shirt”, is an abomination. It’s ugly, non-functional, and I’ve have never known a woman to say, “You know what I like to see on a man? A wife-beater.” Seriously, even the name is a dead give away; run from this thing like the plague, or a bear, or an angry swarm of bees.
They key to good style in clothing is that you look better wearing it than you would otherwise. The “A-Shirt” is the opposite of this.
An “A-shirt” will make me look awesome! – Nobody
Almost no one looks good wearing one, and if, by some magic, they manage to look good in one – they’d probably look better shirtless. Seriously, these shirts require more muscle than Thor to wear, and if you look like that – just go shirtless. Proof 
The entire point of an undershirt is to be absorbent – mostly sweat-absorbent. Now, maybe you’re different than me, but guys I know sweat primarily from under their arms. Therefore, to be functional a shirt would need to cover these sweat areas.
It probably has something to do with the fact that “A-shirts” are so unflattering, but I’ve never known a woman to like them.  A plain white t-shirt? Heck yes. But that has sleeves…and a neckline…and a purpose.
The women around me constantly complain about “A-shirts”, so why would you want to associate yourself with that?
Summary: ugly, non-functional, and lady-repelling. Do yourself a favor and wear a proper undershirt.
Have something that you hate about men’s clothing? Nominate it in the comments and I may choose your pet peeve to roast in an upcoming episode!