HK Army HSTL Goggle Thermal Lens
The HSTL Goggle Mask Thermal Lens System is composed of virgin optical-grade GE polycarbonate--inherently UVA \ UVB and IR shielded, every HSTL lens shields your eyes from dangerous sunlight in every playing condition.
The interior thermal lens features a 3M Foam Sealant, trapping a layer of cool barrier of insulating air, eliminating condensation, and encouraging evaporative cooling.
• Anti-Fog Thermal Layer
• Optical Grade Polycarbonate
• Works only with HSTL Goggle