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One K™ Defender Suede Helmet

The average rating for this product is 4.5 out of 5 stars 6 Reviews
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For a matte helmet with Chrome detailing, we recommend:
The average rating for this product is 5 out of 5 stars 13 Reviews
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One K™ Defender Suede Helmet

  • Beautifully combines advanced technology with a pleasing and unique design
  • Polycarbonate and ABS, injection molded outer shell with a Chamude® suede cover
  • Quick drying, moisture wicking, anti-microbial removable, washable lining
  • Seven stainless steel mesh vents allow optimal air circulation
  • Comfortable padded harness, synthetic suede lining with hook and loop adjustment
  • ASTM/SEI certified
  • Color: Black

How to Measure for a Helmet
How to Properly Size Your Helmet

Measure the circumference of your head by placing the measuring tape roughly one inch above the eyebrow. Different helmet manufacturers have different sizing, so consult the size chart for the particular helmet that you are purchasing. Also consider how you will wear your hair in your helmet. If you are planning on wearing your hair up inside the helmet, allow room for this when choosing a size. When you receive the helmet, place it on your head without fastening the harness. If applicable, adjust the dial on the back of the helmet. Make sure the brim is resting no more than one inch above your eyebrows. Gently try to move the brim up and down. If your eyebrows move, your helmet fits correctly from front to back. Next, shake your head side to side, to the left and to the right. The helmet should remain in place. If either of these tests result in movement, you will want to drop down a size. If the helmet seems to be "perched" on top of your head, you will want to consider moving up a size.

Size Centimeters Helmet Size
Small 53-54 6 5/8-6 3/4
Medium 55-56 6 7/8-7
Large 57-58 7 1/8-7 1/4
X-Large 59-60 7 3/8-7 1/2

If you have any questions about this product or a type of fit, please contact us at 1-800-365-1311 or

One K™ Defender
One K™ Defender
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The average rating for this product is 5 out of 5 stars 45 Reviews
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Brand ONE K
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