This may seem like a silly question, but I was considering armor for Lucrezia and it brought to mind that I wasn't sure what, if any, the restrictions on the appearance of that armor could be and what, if any, cost might be associated with off-model variants that don't specifically convey a bonus to numbers.
Put plainly: can a Heavy Shield simply be bracers with AV 10/OP 5? Could medium armor be a durable corset rather than chain mail?
The stats stay the same, the question is whether armor that doesn't look like classic armor is allowed, and if it costs extra (and how much) to get non-standard-looking armor.
The biggest exploit I saw was the option for a character to conceal that they're wearing armor at all, but without a numeric FIN or skill bonus on the armor, technically I guess anyone could do that already to the same degree. Still, this is my biggest worry as far as numbers balance goes.
Last question: if we're okay with unconventional armor appearances provided the stats stay the same, would something like a magic brooch or amulet that functions like mundane armor be okay under the same rules, or at that point does it need to use the enchantment and magical shielding rules instead as far as cost and OP go?
Thanks! No rush on this :)