As Rito said, can't be too paranoid.
The swimsuit may offer class I and even class II protection if lucky, but no more than that (anything stronger will either break through or doing the damage via sheer impact). It's only plus side is that the damn thing is extremely lightweight, barely reach 1.5 kg (minus the sock), and due to it's structural composition, feels like you having a second layer of thick skin rather than carrying heavy clothing. Awkward but acceptable.
There's few who use bulletproof material for the blazer, or even the entire uniform. Can weight anywhere from 2-7 kg. And as noted above, someone is crazy enough to stuff armor plating behind/inside it, adding up to 10 kg
