The neoprene chin strap padding tube. This adds comfort and reduces the risk of the strap assembly slipping. Easy to replace by sliding off the old one and sliding on a new one.
A foam pad in the crown of the helmet for comfort. This is made from a super soft closed cell foam, which allows comfort for the top of the head while being staying dry even in fully submerged conditions, this means when you rinse out your helmet, it will always be dry for your next use. Easily replaceable as secured by velcro.