ALTEC

Trail Helmet

White

Helmets
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Size Chart
XS/S
S/M
L/XL
$ 165

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Adult Helmets Size Chart

AIRCRAFT & STATUS IN CM Liner Size
XS 20 7/8 - 21 1/4 53 - 54 14 mm
S 21 5/8 - 22 55 - 56 12 mm
M 22 1/2 - 22 7/8 57 - 58 12 mm
L 23 1/4 - 23 5/8 59 - 60 14 mm
XL 24 - 24 3/8 61 - 62 14 mm
XXL

24 3/4 - 25 1/4

TRAJECTA
IN CM
S 20 1/2 - 22 52 - 56
M 22 - 22 7/8 56 - 58
L 22 7/8 - 24 58 - 61
XL 24 - 25 1/4 61 - 64
ALTEC
IN CM
XS/S 19 5/8 - 21 5/8 50 - 55
S/M 21 5/8 - 23 1/4  55 - 59
L/XL 23 1/4 - 24 3/4 59 - 63

 

Youth Helmets Size Chart

* All measurements are in inches
Head Circumference
S 18 1/2"-18 7/8"
M 19 1/4" - 19 5/8"
L 20 1/8" - 20 1/2"
  • Smartshock - 14 Point Smartshock Rotational Protective System
  • Multi-Density EPS foam - injection molded with polycarbonate
  • Massive airflow - With an impressive 15 ventilation ports
  • Altec 350g / M-Shell - Expanded coverage while still lightweight
  • Sunglass Storage - Integrated sunglass storage system
  • Multi-point adjustable visor designed - For maximum vision and goggle stowage
  • Anti-Microbial liner - Washable, moisture-wicking 
  • Adjustable Ratcheting Fitment System
  • Nexus Push Release Snap-Buckle
  • Size-specific molds - XS/S, S/M, and L/XL
Extra comfort-liner for customized fitment

100%'s ALTEC is the advanced rider’s choice for confidence inspiring, protective, lightweight and ventilated All-Mountain helmet.

Featuring Smartshock® suspended rotational system, the ALTEC’s Smartshock® elastomers reduce energy transfer to the brain over a wide range of speed and impact types.

Learn more

ALTEC
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Introducing the Smartshock suspended rotational system from 100%.

A series of shock absorbers are integrated between the helmet shell and liner. These shocks improve protection by compressing and absorbing direct impacts.

The Smartshock system enables the helmet liner to move independently from the shell.

The independent motion and compression features work in unison to reduce energy transfer over a wide range of speed and impact types.

Integrated sunglasses storage system.