Is it okay to wear the American flag?

I've heard both sides of this and here's my take on whether or not it's appropriate to wear the American flag as clothing.
To access the longer, more in-depth flag etiquette lesson: sdetiquette.com/flagsplease

[@Respect_fromyur]

Hi

[@armyboi2274]

Just curious doesn't it say flag should be at least at a 45 degree angle when hanging in flag pole? That flag behind you looks lot less than 45 degree angle doesn't it?