I had worn the gath helmet about 5 years - mainly sun protection , but also added benefit of bit more safety - was petty happy with mine but did get a lot of water in the ears - still have the gath in the car as a back up if needed
started wearing the DMC soft helmets about 2 years ago - IMO bit of a better fit so better sun protection and much better for keeping cold water out of my ears - hopefully help me avoid surfers ears , yet to test it out for impact protection