Fits the Spectra series JT USA goggles. JT Sports, LLC, offers one of the most advanced lenses available to the sport of paintball. The Spectra lens offers over an 1/8 inch thick of poly carbonite for solid impact protection. The Spectra design has been tested at 5x field energy levels for your safety to exceed every industry standard across the board. Additionally, each thermal lens offers 260 degree of optically clear peripheral vision, as well as proven T-lock retention system to keep your lens in place at all times. All Spectra lens meet ASTM standards.