Description The Adjustable Headband is made of 100% M-Flex, which makes it nice and stretchy with a snug fit on your head. The headband ensures that when it starts to get a little colder, your ears and neck stay warm during your session. It also features a reflective line so you stand out on the water. Features: Adjustable Hook&Loop Reflective Decal Striping One Size Materials: M-Flex (100%)