Circumference
51.5
20.11
52
20.47
53.9
21.22
54.9
21.61
55.8
21.97
56.8
22.36
57.7
22.72
58.7
23.11
59.6
23.46
60.6
23.86
61.5
24.21
62.5
24.61
63.5
25
64.5
25.39
Fitted Cap Size
63/8
63/8
61/2
61/2
63/4
63/4
67/8
67/8
7
7
71/8
71/8
71/4
71/4
73/8
73/8
71/2
71/2
75/8
75/8
73/4
73/4
77/8
77/8
8
8
81/8
81/8
Check out the video to find out more
