Protec Old Skool Classic Helmet,
Beware of other non certified "skate" helmets that dont meet Aus Standards AS/NZS 2063:2008, these do.
These helmets look great, are super comfortable and will help protect your head when you need it most.
Head Circumference...
XS - 52-54cm / 20.5" - 21.3"
S - 54-56cm / 21.3" - 22.0"
M - 56-58cm / 22.0" - 22.8"
L - 58-60cm / 22.8" - 23.6"
XL - 60-62cm / 23.6" - 24.4"