In cold and humid environments, you'd do yourself a solid by grabbing a pack of these GoPro Anti-Fog Inserts for your GoPro HD Hero 3 camera. GoPro Anti-Fog Inserts are even re-usable, lasting for about 4-5 uses, and then can be dried in the oven for 5 minutes and used again and again! Includes 12 Anti-Fog Inserts.
