Richardson Hat Size Chart: R-Flex, 112 and Fitted Sizes

Richardson R-Flex sizes

R-Flex caps have a stretch band sewn into the sweatband. S/M and L/XL are the core sizes; XS/S is available in some styles.

Richardson R-Flex sizes
Size	Head circumference (cm)	Head circumference (Inches)	US
XS/S (R-Flex)	53 – 55	20 ⅞ – 21 ⅝	6 ⅝ – 6 ⅞
S/M (R-Flex)	56 – 58	22 – 22 ⅞	7 – 7 ¼
L/XL (R-Flex)	59 – 61	23 ¼ – 24	7 ⅜ – 7 ⅝
OSFM (112 snapback)	56 – 62	22 – 24 ⅜	7 – 7 ¾

The Richardson 112 trucker and the other snapback styles are one size. They adjust to fit most adults, from about 56 to 62 cm (22 to 24 ⅜ in).

If you are between R-Flex sizes, choose the larger one.
Stretch bands relax a little with wear, so a new R-Flex cap should feel snug, not loose.

How to measure your head

1 Use a soft tape measure, or a string and a ruler.
2 Wrap it around your head where the hat will sit: about 1 cm (⅜ in) above your ears and across the middle of your forehead.
3 Keep the tape level and snug, not tight. Do not pull it in.
4 Read the number where the tape overlaps. Measure two or three times and use the largest value.
5 Type the number into the calculator, or find it in the chart.

Frequently asked questions

What size is Richardson S/M?

R-Flex S/M fits 7 to 7 ¼, about 56 to 58 cm (22 to 22 ⅞ in).

What size is Richardson L/XL?

R-Flex L/XL fits 7 ⅜ to 7 ⅝, about 59 to 61 cm (23 ¼ to 24 in).

Is the Richardson 112 one size?

Yes. It has a snapback and fits most adult heads, about 56 to 62 cm.