Short and to the point:
If you have issues with lens fogging then BUY THIS PRODUCT! Works like a dream. Just note that when you use the cloth, it's supposed to seem dry. Don't feel like you received a defective batch when the cloths aren't damp, they aren't supposed to be. These anti-fog cloths should be a major priority when it comes to purchasing airsoft gear... right up there with BBs and Green Gas.
-Works. Plain and simple.
-Stays working for a very, very long time.
-If you keep the cloth stored, you can keep using it over and over. It's also easy to share one cloth with an entire team.
-Since the cloth is dry and the chemical is clear, it's hard to tell what you've wiped and what you haven't.
-Kind of pricy for such a small item but it's definitely worth it in my opinion.
Rating: [5 of 5 Stars!]