BERN Hard Hat Size Chart
MEN'S "Baker S-XL" and "Macon"
Fit Size	CM	Shell Size	Comfort Liner Thickness	Top Pad Thickness
S	53.5-55.5	Medium	5/8	3/8
M	55.5 57	Medium	1/2	1/4
L	57-59	Medium	3/8	1/4
XL	59-60.5	Medium	1/4	1/8
XXL	60.5-62	Large	3/8	1/4
XXXL	62-63.5	Large	1/4	1/4
WOMEN'S "Muse S-L" and "Brighton"
Fit Size	CM	Shell Size	Comfort Liner Thickness	Top Pad Thickness
XS	52-53.5	Small	1/2	3/8
S	53.5-55.5	Small	3/8	1/4
M	55.5 57	Small	1/4	1/8
L	57-59	Medium	3/8	1/4
XL	59-60.5	Medium	1/4	1/4