The ventilation within the helmet can be controlled using the adjustable 2 POSITION CLIMATE CONTROL (partially or fully closed). This works even with gloves on and while riding! Move the slider to control the air volume to match your own personal warmth preference. Naturally the MarkAir CHANNEL SYSTEM will assist keeping your head warm and dry even if the controls are fully shut. Even fully opened, the special vent design prevents the head cooling down too much.