Specifications:

Color: BE-01 black, BE-02 gray, BE-03 sand color, BE-05 color blue,

size: one size  fits all

Loose

Suitable for head circumference (CM): 52-54CM

Suitable

Suitable for head circumference (CM): 54-58CM

Small

Suitable for head circumference (CM): 58-62CM

Overview:

High breathability and strong breathing

Keep your skin dry and not sultry