Maybe it's just me, but it appears that PTG uniforms are quite paper-thin looking. I know high-quality, or even medium quality clothes or uniforms may not be an option in NK, but when I look these uniforms, they appear as if they can be ripped/torn quite easily. Or crumpled if they're not careful.

Does anyone know the composition of the material of the uniforms?

Hmmm.. I don't see that at all. The uniforms look fine to me, can you point out a picture where they look paper-thin?
Just a guess, but probably the white jackets are made of a more lightweight material because they're worn in the summer.

Oh well, then I guess it's just me.

The photo of the month is a good example of why I think the uniforms are flimsy. Just looks kind of flimsy to me, although the overall visuals are more effective.

Hard to tell if the blue ones are a different material than the white ones. The white ones look naturally lighter because they're ........well, white.