Nike Unisex Headwear Size Guide

Nike Unisex Headwear Size Guide
Size One Size S/M M/L L/XL
Hat Size 6 1/2 - 7 3/4 6 1/2 - 7 1/8 6 7/8 - 7 1/2 7 1/4 - 7 7/8
Head Size (inches) 20 1/2 - 24 1/4 20 1/2 - 22 1/4 21 1/2 - 23 1/2 22 5/8 - 24 5/8
Head Size (cm) 52 - 62 52 - 57 55 - 60 58 - 63

Fitting 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.

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 (about an inch/2.5cm above your eyebrows).