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GMAX Helmets

GMax AT-21S Electric Snow Helmet

Item: P815944
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The GMax AT-21S Snow Helmet is an ECE-rated helmet designed to exceed your needs on the snow while doubling as your next adventure touring lid for the… Read More

$242.96
$269.95
Save $26.99 10%
Rebate Available! View Details

Please select a Color & Size to view availability.

Product Details

GMax AT-21S Electric Snow Helmet

The GMax AT-21S Snow Helmet is an ECE-rated helmet designed to exceed your needs on the snow while doubling as your next adventure touring lid for the road. An amber inner sun shield, speaker pockets and a moisture-wicking Coolmax CORE lining add comfort to the interior. A lightweight polycarbonate shell, dual pane anti-fog lens and included breath box keep the outside elements at bay. 

Features: 

  • Lightweight polycarbonate shell
  • Powered dual pane anti-fog snow lens
  • Drop down amber inner sun shield
  • Quick release buckle system
  • Removable, washable antimicrobial liner
  • Speaker pockets
  • Removable sun peak
  • DOT and ECE certified 
Product Style RevZilla Item # MFR. Product # Availability
Product Style Black / 2XL RevZilla Item #1762945 MFR. Product #G4210028 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Black / LG RevZilla Item #1762946 MFR. Product #G4210026 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Black / MD RevZilla Item #1762947 MFR. Product #G4210025 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Black / SM RevZilla Item #1762948 MFR. Product #G4210024 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Black / XL RevZilla Item #1762949 MFR. Product #G4210027 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Black / XS RevZilla Item #1762950 MFR. Product #G4210023 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Matte Black / 2XL RevZilla Item #1762951 MFR. Product #G4210078 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Matte Black / LG RevZilla Item #1762952 MFR. Product #G4210076 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Matte Black / MD RevZilla Item #1762953 MFR. Product #G4210075 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Matte Black / SM RevZilla Item #1762954 MFR. Product #G4210074 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Matte Black / XL RevZilla Item #1762955 MFR. Product #G4210077 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Matte Black / XS RevZilla Item #1762956 MFR. Product #G4210073 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment

GMax Helmet Sizing

Size Head (cm)
XS 53 - 54
SM 55 - 56
MD 57 - 58
LG 59 - 60
XL 61 - 62
2XL 63 - 64
3XL 65 - 66
4XL 67 - 68

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.


How to Measure

  • H Head
    Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
Product Description
Part Numbers
Sizing & Fit
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