Hats and Headwear

    The measurements on the size chart are body measurements. Find your correct size in the chart below. Scroll horizontally to see more sizes.

    Size Chart
    Nike Hat Size6 1/26 5/86 3/46 7/877 1/87 1/47 3/87 1/27 5/87 3/47 7/88
    Head Size (in.)20 1/220 7/821 1/821 1/221 7/822 1/422 5/82323 1/223 7/824 1/424 5/825+
    Alpha SizeXSSMLXL
    Swoosh FlexXS/SXS/SXS/S S/MXS/S S/MS/M M/L OSS/M M/L OSM/L L/XL OSM/L L/XL OSL/XL XL/XXLL/XL XL/XXL
    Adjustable UnisexXSXSXS S OSXS S OSXS S OSXS S OSS OSS OS XLOS XLOS XLXLXLXL
    Adjustable Women'sSSS OSS OSS OSS OSOS LOS LLLLL
    Dual Size UnisexXS/SS/MM/LL/XLXL/XXL
    Dual Size Women'sS/MM/LL/XL

    Fit Tips

    • If you're on the borderline between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit.
    • OS = One Size.

    How To Measure

    Measure the circumference of your head using a tape measure. Wrap it around your head at the point where the hat will sit (2cm approx. above your eyebrows).