Ops-Core FAST SF - Ops-Core FAST SF Helmet Sizing Guide; Helmet Sizing Chart; Chinstrap Sizing Chart

HELMET SIZING GUIDE
X-LARGE
FAST HELMET SIZE CHINSTRAP SIZE (
in
)
M
MEDIUM
L
XL
LARGE
XXL
XX-LARGE
29-32.3
27.5-30.5
26-29
24.5-27.5
CHINSTRAP SIZING GUIDE
S ince people have different shaped heads, helmet size (the size of
the top of your head) is not always proportional
to the chinstrap size
(the size of your face).
12
13
1 4
1 5
1 6
1 7
1 8
1 9
2 0
FAST HELMET SIZE
Head Circumference (cm)
Head Circumference (in)
Head Size (US)
53 - 56
20⁄ - 22
M
up to 7
56 - 59
22 - 23¼
L
up to 7⁄
59 - 62
23¼ - 24⁄
XL
up to 7⁄
62 - 64.5
24⁄- 25⁄
XXL
up to 8⁄
13
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2
1
RUN MEASURING
TAPE ALONG FRONT
EDGE OF EAR
FAST helmets have been designed from the ground up to t the largest group of users in helmet sizes that most
closely match their heads. However, there is still a small percentage of users that will not t our standard sizing
congurations. Please use the sizing guide below to determine your helmet size and your chinstrap size.
SIZING GUIDE
6