JT's exclusive "dual-fusion" technology has helped us produce a revolutionary exoskeleton that can only be found within our Spectra goggle line. More specifically, the Flex-8 system offers integrated venting on the jaw which has also been strategically designed to encourage deflections and bounces. While the JT Spectra Flex-8 offers a smaller target to your opponent than previous Spectra systems, the Flex-8 goggle still maintains its ability to accept the Vortex II fan and other popular JT accessories. All models come with a removable visor.