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Respond to changing light conditions with the Spy Soldier Goggle Replacement Lenses. These low-profile lenses feature a dual-lens construction that Spy sealed with a PU-based glue to create a dehumidified and depressurized chamber. This means no between-the-lens fogging or altitude-induced distortions. In addition, these lenses also feature 100% UV protection and anti-fog and anti-scratch coatings for durable protection.