- DOT approved
- Full Dressed style: (visor, vent, and neck curtain)
- Sleek shape
- High tech Coolmax interior moves moisture from the head and keeps you cool and
comfortable
- Gmax deluxe fit
- Clear coated painted shell
- Padded chin strap
GMax Helmet Size Chart:
Helmet Sizing Information. We ask that you use the following information to
help choose the proper size helmet. In order for a helmet to protect properly
and be the most comfortable, it must be size to your head correctly.
To find the Correct size helmet for a person's head:
(1) Measure the head circumference one-inch above the eyebrows and ears
(2) Using the circumference measured, use the size chart below to find the
approximate size
(3) Once you have tried on the helmet it should fell snug equally around the
head. The helmet should not feel too tight or too loose at any point around
head.
*** Please remember that all head shapes vary slightly and that this sizing
chart is to be used as a starting guide, not an exact guide.
SIZE CHART
CIRCUMFERENCE
HELMET SIZE
Metric cm
Inches
Letter
Number
53
- 54cm
21-1/4" - 21-5/8"
XS
6-3/4 - 6-7/8
55
- 56cm
22"
- 22-7/16"
S
7 -
7-1/8
57
- 58cm
22-13/16" - 23-1/4"
M
7-1/4 - 7-3/8
59
- 60cm
23-5/8" - 24"
L
7-1/2 - 7-5/8
61
- 62cm
24-3/8" - 24-13/16"
XL
7-3/4 - 7-7/8
63
- 64cm
25-3/16" - 25-5/8"
XXL
8 -
8-1/8
65
- 66cm
26"
- 26-3/8"
XXXL
8-1/4 - 8-3/8
67
- 68cm
26-1/2" - 26-5/8"
XXXXL
Customer Reviews
GMax GM35F Derk Helmet with Speaker Pockets
Rated 10
out of 10
based on 1 reviews
Comment: It was shipped very fast and is a great helmet! Thanks so much Great Service!!! I want to give you the highest rating but I am not sure if 1 or 10 is the highest?