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GMAX Helmets

GMax Youth AT-21S Adventure Snow Helmet

Item: P815943
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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

$157.46 $166.46
$174.95 $184.95
Save up to Save $18.49 10%
Price depends on product options. Make a selection to update price.
Rebate Available! View Details

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Product Details

GMax Youth AT-21S Adventure 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
  • 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 / LG RevZilla Item #1762927 MFR. Product #G2210022 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Black / MD RevZilla Item #1762928 MFR. Product #G2210021 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Black / SM RevZilla Item #1762929 MFR. Product #G2210020 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Matte Black / LG RevZilla Item #1762930 MFR. Product #G2210072 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Matte Black / MD RevZilla Item #1762931 MFR. Product #G2210071 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Matte Black / SM RevZilla Item #1762932 MFR. Product #G2210070 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Grey/Black / LG RevZilla Item #1762936 MFR. Product #G2211502 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Grey/Black / MD RevZilla Item #1762937 MFR. Product #G2211501 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style Grey/Black / SM RevZilla Item #1762938 MFR. Product #G2211500 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style LG / Blue/Hi-Viz Yellow/Black RevZilla Item #1762933 MFR. Product #G2211042 AvailabilityIn Stock: Requires 1-2 business days of lead time prior to shipment
Product Style MD / Blue/Hi-Viz Yellow/Black RevZilla Item #1762934 MFR. Product #G2211041 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style SM / Blue/Hi-Viz Yellow/Black RevZilla Item #1762935 MFR. Product #G2211040 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style LG / Pink/White/Black RevZilla Item #1762939 MFR. Product #G2211402 AvailabilityIn Stock: Requires 1-2 business days of lead time prior to shipment
Product Style MD / Pink/White/Black RevZilla Item #1762940 MFR. Product #G2211401 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style SM / Pink/White/Black RevZilla Item #1762941 MFR. Product #G2211400 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style LG / Red/Black/Silver RevZilla Item #1762942 MFR. Product #G2211372 AvailabilityIn Stock: Requires 1-2 business days of lead time prior to shipment
Product Style MD / Red/Black/Silver RevZilla Item #1762943 MFR. Product #G2211371 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment
Product Style SM / Red/Black/Silver RevZilla Item #1762944 MFR. Product #G2211370 AvailabilityIn Stock: Requires 4-6 business days of lead time prior to shipment

GMax Youth Helmet Sizing

Size Head (cm)
SM 49 - 50
SM/MD 50 - 51
MD 51 - 52
LG 53 - 54
LG-XL 52 - 53

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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