Head Circumference (cm) New Era Fitted Cap Size
54.9 6 7/8
55.8 7
56.8 7 1/8
57.7 7 1/4
58.7 7 3/8
59.6 7 1/2
60.6 7 5/8
61.5 7 3/4
62.5 7 7/8
63.5 8