ok rookie question, but what is the big deal with wearing layers? why does it matter if you do wear a hoodie or puffa jacket (other than it be a bit warm!!?)
The more layers you wear, the more padding you have, which means paint is more likely to bounce, rather than break.
Obviously, if one team are wearing T shirts and Jerseys and the other team are wearing t shirts, sweatshirts, hoodies and jerseys, all at once, they have a distinct advantage because paint WILL bounce off of them.
It's not fair, basically.
The Proto vests were contentious at first, but I think people realised that there is a need to protect our flesh, with the nature of the modern game, the high rates of fire and close up action.
BTW: Does anyone know, if that sleeveless top that Eclipse have just released, is their version of the Proto Vest?