The Nerdwax FogBlock is a reusable coated microfiber cloth that keeps your lenses fog free.
Simply dampen your lenses and wipe evenly with cloth.
- Safe and effective for use with all lenses and coatings
- Stays effective for 1 year or 300 applications when kept in pouch
All Nerdwax Fog Block sales are non-refundable or returnable.