Nike - Hats and caps

Find your size

Adjustable
Universal size Adults Children
Head circumference (cm) 54–61 53-57
Sizes marked with letters
Size XS S M L XL
Head circumference (cm) 54 56 58 60 62
Two sizes in one
Size XS/S S/M M/L L/XL XL/XXL
Head circumference (cm) 55 57 59 61 63
Adjustable
Universal size Adults Children
Head circumference (Inches) 21 1/8-23 7/8 20 7/8-22 1/4
Sizes marked with letters
Size XS S M L XL
Head circumference (Inches) 21 1/8 21 7/8 22 5/8 23 1/2 24 1/4
Two sizes in one
Size XS/S S/M M/L L/XL XL/XXL
Head circumference (Inches) 21 1/2 22 1/4 23 23 7/8 24 5/8
How to choose the right size?
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Step 1: Measure yourself

Measure the circumference of the head with a tape measure. Wrap it around your head where the cap will be fitted (about 2-3 cm above the eyebrows).

Step 2: Find your size

Find your size in the following chart. If you are on the borderline between two sizes, choose the smaller size for a tighter, or the larger for a looser fit.