| Nike Hat Size | 6 1/2 | 6 5/8 | 6 3/4 | 6 7/8 | 7 | 7 1/8 | 7 1/4 | 7 3/8 | 7 1/2 | 7 5/8 | 7 3/4 | 7 7/8 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Head Size (in.) | 20 1/2 | 20 7/8 | 21 1/8 | 21 1/2 | 21 7/8 | 22 1/4 | 22 5/8 | 23 | 23 1/2 | 23 7/8 | 24 1/4 | 24 5/8 | 25+ |
| Alpha Size | XS | S | M | L | XL | ||||||||
| Swoosh Flex | XS/S | XS/S | XS/S S/M | XS/S S/M | S/M M/L OS | S/M M/L OS | M/L L/XL OS | M/L L/XL OS | L/XL XL/XXL | L/XL XL/XXL | |||
| Adjustable Unisex | XS | XS | XS S OS | XS S OS | XS S OS | XS S OS | S OS | S OS XL | OS XL | OS XL | XL | XL | XL |
| Adjustable Women's | S | S | S OS | S OS | S OS | S OS | OS L | OS L | L | L | L | L | |
| Dual Size Unisex | XS/S | S/M | M/L | L/XL | XL/XXL | ||||||||
| Dual Size Women's | S/M | M/L | L/XL |
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.
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).