One K Defender Matte Helmet


Matte helmet features injection molded outer shell with all-over ventilation strips

The One K™ Defender Matte Helmet boasts the perfect synergy between advanced technology and aesthetically pleasing design. Featuring an injection molded Polycarbonate and Advanced ABS Composite outer shell with a washable, quick-drying, moisture wicking, and anti-microbial liner. The harness is padded with a synthetic suede lining and features a quick and easy hook & loop adjustment and a sturdy Fastex buckle. Complete with all-over ventilation stripes for added comfort.

  • Matte Polycarbonate and Advanced ABS Composite outer shell
  • Injection molded shell design
  • Washable quick quick, moisture wicking, anti-microbial liner
  • Comfort padded harness with synthetic suede lining and hook & loop adjustment and Fastex buckle
  • All-over stripe ventilation panels
  • ASTM/SEI F1163-15 certified

HELMET WARNING: Greenhawk, its employees and/or its representatives make no representation or warranty with regard to the adequacy, safety, fitting, suitability, specifications or reliability of any helmet; nor do we make representation as to the reliability or warranty of any helmet specification, safety features, fitting or sizing, safety rating or safety information referred herein. The purchaser and/or user is solely responsible for proper fitting and use. No safety gear can protect the wearer against all foreseeable impacts. The purchaser or user of these helmets and vests should recognize that their use is no guarantee of safety. No warranties, safety specification, proper fit or safety rating is implied. Do not use without reading all instructions available from the manufacturer. If you have any questions or concerns about your helmet, please contact the manufacturer.

HELMET RETURN POLICY: Safety items such as helmets and protective vests may be returned in new, unused condition within 30 days of purchase with the original tags attached to the helmet and all packaging intact. You may try on your helmet or vest for fitting purposes. Helmets or protective vests that have been ridden in or subjected to use are not eligible for return.


    Orders over $75.
    Canada Only.

  • Customer Service


  • Chat

    Click icon below to chat.

  • Safe Checkout

    100% encrypted connection.