Nike - Hats and caps
Find your size (cm number = insole length)
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?
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 (cm number = insole length)
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.