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Gmax AT-21Y Youth Dual Sport Helmet - Double Lens

by GMAX
Original price $219.95 - Original price $219.95
Original price $219.95
$219.99
$219.99 - $219.99
Current price $219.99
SKU 492-1020D
Color: Black
Size: Youth/s

GMAX is excited to introduce the AT-21 designed competitively from the ground up. The AT-21 is constructed from a lightweight polycarbonate shell offering superior protection and exceeds DOT and ECE safety certifications. This helmet is made in three shell sizes, from youth to adult, offering a lightweight shell for any adventure. Internally, the helmet is equipped with an inner sun shield, SpaSoft interior and recessed speaker pockets for communication systems. The removable interior with COOLMAX CORE Technology wicks moisture away from the body and is designed to keep you dry and comfortable during your journey. Enjoy your adventure with the all new AT-21 from GMAX.

  • Quick-release buckle.
  • Constructed from a lightweight polycarbonate shell offering superior protection.
  • Removable, adjustable, and washable antimicrobial SpaSoft interior allows for easy cleaning and custom fitting.
  • Lightweight shell.
  • Drop-down sun shade with anti-fog coating.
  • Built-in speaker pockets for communication systems (sold separately).
  • ECE / DOT Approved.
  • Youth model.
  • Note: Ships with a Clear faceshield and a tinted drop-down sun shade, all other hues sold separately.

To ensure that the proper sized item arrives, we suggest customers follow brand specific sizing guides. Google and other search engines provide a wealth of information in regards to specific brands sizing. Just because you currently wear a certain size, a new brand may have slightly different fitment specifications. Please reach out to us if you have any questions regarding the fitment of the brands we carry and we can provide you with more accurate sizing charts on a brand-by-brand basis. 1-877-745-4232


As well please use SIZING CHART here.


In order for a helmet to protect properly and be the most comfortable, it must be sized to your head correctly.


The best way to check sizing is to put the helmet on and see that the helmet feels snug equally all around your head. The helmet should not feel too tight or too loose at any particular point around your head.


If you can’t put it on, at all, then that’s obviously too tight. If you can get it on, but it hurts where it presses against your head, that’s also too tight. If it’s snug all around, too snug to chew gum, that’s about right. Don’t forget about that 15 percent to 20 percent break-in that will occur.