Cap size charts
On this page you will find the cap size charts. Individual caps are slightly different for each manufacturer, so the size chart of caps always slightly differs.

Table of Contents:
Nike Caps sizes
Snapback / adjustable
| Size | MISC (universal) |
|---|---|
| Circumference (in cm) | 54–61 |
Flex fit / stretch
| Size | S/M | M/L | L/XL |
|---|---|---|---|
| Circumference (in cm) | 54–57 | 56–59 | 58–61 |
Adidas Caps sizes
Adjustable size (snapback, strapback)
| Size | Children (OSFY) | Women (OSFW) | Men (OSFM) |
|---|---|---|---|
| Circumference (in cm) | 54 | 56 | 58 |
Fixed (fitted)
| Size | XS/S | S/M | M/L | L/XL |
|---|---|---|---|---|
| Circumference (in cm) | 54–55 | 56–57 | 58–59 | 60–61 |
Reebok Caps sizes
Snapback / adjustable
| Size | OSFY (children) | OSFW (women) | OSFM (men) |
|---|---|---|---|
| Circumference (in cm) | 54 | 56 | 58 |
Flex fit / stretch
| Size | S/M | L/XL |
|---|---|---|
| Circumference (in cm) | 56–58 | 59–61 |
New Era Caps sizes
59fifty (fitted)
| Size | 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Circumference (in cm) | 54,9 | 55,8 | 56,8 | 57,7 | 58,7 | 59,6 | 60,6 | 61,5 | 62,5 | 63,5 |
39thirty
| Size | S/M | M/L | L/XL |
|---|---|---|---|
| Circumference (in cm) | 54,9–57,7 | 57,7–60,6 | 60,6–63,5 |
9fifty
| Size | S/M | M/L |
|---|---|---|
| Circumference (in cm) | 54,9–59,6 | 56,8–61,5 |
9forty
| Size | Junior | Youth | Adult |
|---|---|---|---|
| Circumference (in cm) | 52–53 | 54–55 | 56–61 |
Zephyr Caps sizes
Z-fit / stretch
| Size | XS | S | M/L | XL |
|---|---|---|---|---|
| Circumference (in cm) | 54,9 | 55,8–56,8 | 57,7–58,7 | 59,6–61,5 |
Check also size charts of:
Fitted
| Size | 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Circumference (in cm) | 54,9 | 55,8 | 56,8 | 57,7 | 58,7 | 59,6 | 60,6 | 61,5 | 62,5 | 63,5 |