Well, modern packs are really great for “normal” humans but what about spandex-clad psionics, Kryptonians, (green ?) hulking brutes or cape-wearing flying Gods of thunder ?
A pack for those greater than life (and anatomically impossible, yeah, I know 😛 ) characters would be fine.
For instance:
http://static.comicvine.com/uploads/scale_small/6/66303/1976044-act01_cvr1_02.jpeg
http://static.comicvine.com/uploads/scale_small/1/15723/326643-96533-lady-supreme.JPG
http://static.comicvine.com/uploads/scale_small/1/15723/331807-109408-probe.JPG
http://static.comicvine.com/uploads/scale_small/3/31666/3899153-avenpo2012034-keown-01dca.jpg
Just to illustrate my point 😉