Agreed with above, excellent option for when full seal is required. When the strap is used it gets foggy like everything else and requires proactive measures (cat crap etc). But not as foggy as my Boogies were. And for me, when the arms are used instead of the strap it loses full seal (shape of head I guess).
FYI not sure if they are cheaper but they are OEMed by Pyramex (I-Force)
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Views are my own.
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