Researchers from Korea developed a new graphene-CNT hybrid fiber that is at least 12 times stronger than Kevlar, and more flexible. They now aim to commercialize this material- so we may see it appear in commercial bulletproof vests, vehicles and aircraft in a few years...

http://www.graphene-info.com/new-hybrid-graphene-cnt-fibers-are-least-12-times-stronger-kevlar