Wiley-X Spear Tactical Ballistic Goggles are multi-functional military goggles. Wiley X Spear Interchangeable Lens Goggles feature symmetrical venting system, that keeps lenses from fogging, and low profile design that is NVG compatible. The 2.5mm lenses of WileyX Spear Tactical Goggles provide 100% UV protection and meets MIL-V-43511C Ballistic Requirement. All models of Wiley X Spear Ballistic Goggles come standard with Smoke and Clear Lenses. RX Insert are available: a blank RX adapter is standard for Wiley-X Spear Goggle SP28RX, and optional (could be purchase separate) for WileyX Spear SP28. For nearly two decades, Wiley-X has been perfecting shatterproof eyewear for the demanding environments our fighting forces encounter every day. Wiley X supplies eyewear to the Army Rangers, Special Forces, Navy SEALs, Marine Corps, D.E.A. and F.B.I., to name just a few. It's the name you want on your temple when all hell breaks loose. Wiley X Ballistic Eyewear is built to last in rigorous military and law enforcement situations, and built to live up to the name WileyX created: HVP, High Velocity Protection. In situations where uniformed servicemen and women are in harms way, their eyesight shouldn't be. That's why Wiley X Goggles are a favorite with nearly everyone who dons a uniform. Customizable (day and night lenses with temples for ballistic sunglass conversion). Shatterproof lenses, durable Ultra-Foam, Foil anti-fog technology aid visibility and provide protection under fire. Streamlined design and dual pivot strap of Wiley X Tactical Goggles provides comfort over or under any helmet configuration. Features of Wiley X SPEAR Tactical Goggles: Multi-functional Tactical Ballistic Goggle Interchangeable Lenses Meets MIL-V-43511C Ballistic Requirement Symmetrical Venting System Keeps You Fog Free 2.5mm Lens Provides 100% UV Protection Low Profile Design That Is NVG Compatible Package Contents: Wiley-X Spear Interchangeable Lens Tactical Goggles w/ Black Matte Frame