I have the GIVI Airflow stacked shield on mine. The adjustable shield comes in handy when smoking my cigars or when there is too much debris coming up from the cars/trucks in front of me. I had the shields custom tinted to help blend with the bike.
Thanks Goldstar903, correct it directs the airflow over the top creating a pocket. The only downfall is when I wear my full face helmet, I do not get any air into the helmet vents or when it rains I cannot turn my head to have the wind clear my shield.