You can return the product within 14 days.
The KASK Dogma Equestrian Helmets Lateral Fit System (pair) has been devised to improve fit of the helmet specifically for riders that feel a gap on the side of their heads. This may occur with people who have slightly more oval shaped heads than round.
The Lateral Fit System is a pair of foam strips that can be added to the inside of the helmet. These can be layered on top for adding even more cushioning on the sides of the head (up to 5 on each side)