Size (a sampling error of plus or minus 2 cm):

SX: neck circumference of 30 cm， 22 cm， 20 cm in length S: of neckcircumference of 35 cm， 24 cm， 24 cm in length

M: neck circumference of 40 cm， 27 cm， 27 cm in length L: of neckcircumference of 45 cm， 32 cm， 30 cm in length

XL: neck circumference of 52 cm， 36 cm， 34 cm in length XXL: of neckcircumference of 58 cm， 40 cm， 38 cm in length