Anti-fog lenses provide chemical protection for your eyes. Indirect vent. Easy adjusting strap. • Anti-fog lens. • Provides chemical protection and indirect vent. • Easy-adjusting strap for a personal fit. • Black/clear. Anti-fog lenses provide chemical protection for your eyes. Indirect vent. Easy adjusting strap for a personal fit. OTG: No; Venting: Indirect; Wraparound Lens: Yes; Lens Color: Clear.