This extra large helmet bag is designed for those drivers that use the Hans Device.  It is large enough to fit your helmet and device inside the bag.  The bag features a lined interior that is easy to clean and three external storage pockets and one vented mesh pocket.  The bag also has a foam inner liner to better protect your helmet.  The bag is 11 1/2" wide, 14 1/2" tall and 18 1/2" long.