Size chart:
Size M- fits a neck of 16.7 to 19.7 inch (42.5 to 50 cm)
Size L- fits a neck of 19.7 to 22.6 inch (50 to 57.5 cm)
Size XL- fits a neck of 22.6 to 25.6 inch (57.5 to 65 cm)
Size XXL- fits a neck of 25.6 to 29.5 inch (65 to 75 cm)
Data sheet
Specific References
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