GoPro Anti-Fog Inserts (GoPro OFFICIAL ACCESSORY) GoPro

Drop inserts into sides of camera housing to prevent fogging in cold and humid environments. To Reuse: Inserts will last for approximately 4 uses. To dry out and reuse, heat inserts on a pan in oven at 300° F for 5 minutes. Store in an airtight bag. For use with all cameras.