Size Medium - fits head sizes 55–60 cm and is best suited for most adults.

Size Small - fits head sizes 50–55 cm and is best suited for most kids and adults with smaller heads.

If you are between sizes, we recommend choosing the bigger size for the most comfortable fit.

All hats feature an adjustable back toggle, flexible inner shell back, and adjustable chin strap for a secure and comfortable fit in and out of the water.

To measure your head, wrap a soft measuring tape around the widest part of your head, just above your eyebrows and ears, keeping it snug but not tight. If you do not have a measuring tape, use a piece of string and measure it against a ruler afterwards.