This cap features an adjustable velcro closure and an open design at the top. Circumference in size XS/S: 56 cm/22 in. Length of the brim in XS/S: 7.8 cm / 3.1 in. Circumference in size M/L: 58 cm/22.83 in. Length of the brim in size M/L: 7.8 cm / 3.1 in. This cap comes in dark gray.