They're customisable (lens package, temples for sunglass conversion) with durable Ultra-Foam sealing & Foil anti-fog technology to keep your eyes well protected CQC - w/ Rx Insert NERVE - w/ Rx Insert SPEAR - w/ Rx Insert CQC NERVE SG-1 - 2 Lens Package SG-1 - LA Light Adjusting SG-1 - V-Cut 2 Lens Package SG-1 Crimson Red/Clear SPEAR WX PATRIOT - Black / 2 Lens Package WX PATRIOT - Black w/ RX insert