• JT Spectra Thermal lenses pass ASTM standard for eye protection
• Spectra 260° field of vision
• replacement lens fits all spectra goggle systems
All JT Spectra Thermal Lenses are treated with a super scratch resistant silicone hard coat. JT's special silicone formula is three times stronger than the industry standard and offers more protection than any other lens on the market, in simple terms it's built to last.