Haha... that video is a joke. I've used lightweight Kevlar vests for 15 years now and haven't had one get cut thru. That being said... any vest can be cut thru.
Dumb azz video,just a sales pitch. That ole green vest was worn by Clifford for how long? then Shiner for a few years then on to Peewee and never got poked through. 10 years of use at least. i'll stick with theses for sure.