The BKK O3 Shield neck gaiter is specially designed to provide complete protection for the face and neck while fishing in extremely hot sun. The OZONESHIELD fabric technology undergoes a special UV-blocking treatment that enhances the fabric’s ability to wick away sweat and provides ultimate UV protection up to UPF 40+ against excessive UV radiation that can damage your skin. This, combined with ventilation holes at the mouth and nose, prevents the heat from your breath from building up inside the mask and fogging up your glasses. Additionally, high elasticity and an innovative design ensure complete freedom of movement and comfort.