Swim Hats Chart

Size Circumference +
XS 17.5″/44.5cm Best fit for babies and toddlers for a snug fit
S 20″/49cm Only available in the revisable hats
One Size 21.5″/54.6cm  
XL 23.5″/59.7cm Best fit for above-average size adult head

Sizing Tips

To ensure you get the right size, try this easy method. If you don’t have a measuring tape, use a piece of string or ribbon. Mark the length and then lay it flat against a ruler or yardstick to find your head measurement.

Head Measurement

Wrap the string or tape around your head just above your ears, angling slightly upward across your forehead. This will give you an accurate measurement of your head circumference for a proper fit.

how to measure HEAD CIRCUMFERENCE