Good luck for your review. I´m not sure but i mean, PVC Frames are not allowed for SWAT-Packs.
Felice wrote in an other Review about a PVC-Pack:
" You used an old backpack Setup which is no longerup to SWAT Standards anymore. The current SWAT packs require the correct Karrimor frame (or an adequate replica like the one from Michael Seeger) and also are not allowed to show any connection tubes."
But wait for the comment from felice.