Leather seating surface and automotive grade vinyl siding on Standard IST (Independent Suspension Technology) model. Breathable, waterproof, spacer mesh material with automotive grade vinyl siding on optional AirHawk IST model. Developed for the rider who wants to sit back and lower with comfort. Wider front and rear for max comfort with feel of the bike and road. Lowest profile production IST for the rider and passenger. Made in the U.S.A..