Hats

Alpha Size Size (in) Measurement
S 6 3/4 - 6 7/8 21 1/2 - 21 2/3
M 7 - 7 1/8 22 1/8 - 22 1/2
L 7 1/4 - 7 3/8 23 - 23 3/8
XL 7 1/2 - 7 5/8 58 - 59

Gloves

Alpha Size Size (in)
S 7 1/2 - 8
M 8 1/2 - 9
L 9 1/2 - 10
XL 10 1/2 - 11
XXL 11 - 11 1/2

Hats

Alpha Size Size (cm) Measurement
S 17.14 - 17.46 54.61 - 55.03
M 17.78 - 18.09 56.19 - 57.15
L 18.41 - 18.73 58.42 - 59.37
XL 19.05 - 19.36 147.32 - 149.86

Gloves

Alpha Size Size (cm)
S 19 - 20
M 22 - 23
L 24 - 25
XL 27 - 28
XXL 28 - 29

To find your glove size:
1. Open your dominant hand
2. With a tape measure, wrap around your hand over the knuckles
3. Where the tape measure overlaps at the starting point is the measurement for your glove size