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GMAX Helmets

GMax AT-21S Adventure Snow Helmet (2XL)

Item: P815946
5 Read 5 Reviews 3 Q&As Write a Review

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

Dual Sport Helmet Overview and Buying Guide
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Product Details

GMax 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 
WARNING: Cancer and/or reproductive harm - www.P65Warnings.ca.gov
Product Style RevZilla Item # MFR. Product # Availability
Product Style Black / MD RevZilla Item #1762994 MFR. Product #G2210025 AvailabilityOut of Stock
Product Style Black / SM RevZilla Item #1762995 MFR. Product #G2210024 AvailabilityOut of Stock
Product Style Black / XL RevZilla Item #1762996 MFR. Product #G2210027 AvailabilityOut of Stock
Product Style Black / XS RevZilla Item #1762997 MFR. Product #G2210023 AvailabilityOut of Stock
Product Style Matte Black / 2XL RevZilla Item #1762998 MFR. Product #G2210078 AvailabilityOnly 1 Left: Ships next business day
Product Style Matte Black / SM RevZilla Item #1763001 MFR. Product #G2210074 AvailabilityOut of Stock
Product Style Matte Black / XS RevZilla Item #1763003 MFR. Product #G2210073 AvailabilityOut of Stock

GMax Helmet Sizing

For riders falling between sizes, we recommend sizing down.
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
5 Customer Reviews
5 4.5/5
3 Questions & 1 Answers
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