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size guide

KEYONE STANDARD SIZING

XS S M L XL XXL
US SIZE 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
CENTIMETERS 53 54 55 56 57 58 59 60 61 62
INCHES 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

Free Size: If a hat lists F size, it is a 'one-size-fits-all' hat. It will fit sizes from 53cm up to 62cm.

WHAT’S MY SIZE?

The best way to determine what your size is to measure the circumference of your head where you want to wear it. Please refer to the sizing chart on the product page before you measure.

MEASURING YOUR HEAD

Measure the circumference of your head approximately 2.5cm (1") below the hairline to the back of the head.

If you’re unsure or in-between sizes, we recommend sizing up and adding some hat fillers or utilizing the adjustable sweatband for the perfect fit.