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One K (#29860)

One K Defender Avance Wide Brim Helmet

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As riders and online shoppers, we know it can be tough to buy a new bridle or pair of boots without trying them on. That's why we moved the fitting room to your living room (or barn)! From breeches to blankets, if you or your horse can try it on, you can return it, free! Just request a return with a FREE SmartPak return label from your Order History within 60 days of the purchase date. And of course, please make sure the item is in like-new condition with original packaging (we said 'fitting room', not 'war room'!).

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Begin with the zone for the state you are in. Dates shown on the map indicate suggested start and end dates for Fly Stoppers™ shipments. You may want to shift a zone if your elevation or microclimate is unusual, or if you fall on the border between two zones. You can start anytime during the fly season. Choose "Year Round" for climates that have flies all year, and start now.
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Overview

Why We Love This

The OneK Defender Avance Wide Brim Riding Helmet combines all of the features of the original One K™ Defender with the addition of a wide brim to offer additional coverage from the sun’s damaging rays!

Polycarbonate and Advanced ABS Composite outer shell; injection molded shell design; washable quick-dry, moisture wicking, anti-microbial liner; stainless steel mesh; comfort padded harness with synthetic suede lining, hook & loop adjustment, and Fastex buckle; two front, one back, and two center stripe vents. One K™ Helmets boast the perfect synergy between advanced technology and aesthetically pleasing design. With enough features to appeal to those seeking everything a helmet could possibly offer, wrapped in a package that traditionalists can appreciate, One K™ has the best of both worlds. Certified to ASTM standards.

Additional One K Helmet Liners also available!

Imported

CAUTION: Safety equipment must fit properly and be appropriately secured with manufacture approved parts only. Altering or adding to safety equipment voids warranty and can result in injury. As a safety precaution, inspect all products prior to each use.

For additional information on fit, watch our video on how to fit your helmet. Click Here!

Check out the other items we offer from One K helmets Here!
  • Polycarbonate and Advanced ABS Composite outer shell
  • Injection molded shell design
  • Washable quick-dry, moisture wicking, anti-microbial liner; stainless steel mesh
  • Comfort padded harness with synthetic suede lining, hook & loop adjustment
  • Fastex buckle;  two front, one back, and two center stripe vents
  • One K™ Helmets boast the perfect synergy between advanced technology and aesthetically pleasing design.
  • With enough features to appeal to those seeking everything a helmet could possibly offer, wrapped in a package that traditionalists can appreciate, One K™ has the best of both worlds.
  • SEI/ASTM F1163.15
Key Specifications
  • ASTM/SEI: Yes
  • Oval: Yes
  • Round : Yes
  • STILL HAVE QUESTIONS? SEE Q&A
  • 100% Happiness Guarantee
    100% Happiness Guarantee
    At SmartPak, your happiness is at the core of everything we do. We put our products to the test in our barns and on our horses, and back every order with our world-class customer service so that you can shop with confidence. As part of our Happiness Guarantee, we promise you:
    • Expert advice from riders
    • Free shipping every day
    • Free return shipping on sized items
    • Hassle-free returns up to 365 days after purchase
Ingredients
(Maintenance Dose = )
Ingredient Amount
Sizing

Helmet Shape:

Regular/Round – Is shaped for a head which has almost identical front-to-back and side-to-side measurements. Long Oval – Is shaped for a head which is longer front-to-back (from forehead to the back of the skull) than it is side-to-side (ear to ear).

What Customers Say:
Sizing Chart for One K Defender Avance Wide Brim Helmet
Specifications
ASTM/SEI Yes
Oval Yes
Round Yes
Reviews
One K Defender Avance Wide Brim Helmet is rated 4.0 out of 5 by 3.
Rated 2 out of 5 by from Long oval is not long oval enough I bought this helmet for the wide brim and the fact that it was available in long oval. Unfortunately, it seemed far more round than oval on my head- VERY tight at the front and back, and a big gap on the sides. Sadly, I had to return it.
Date published: 2020-05-08
Rated 5 out of 5 by from Love! I bought this as a second helmet for schooling. Let me tell you, it looks and fits just as well as my KASK. Very impressed with this product.
Date published: 2019-11-29
Rated 5 out of 5 by from Very comfortable fit!! I bought this ito replace my old One K helmet that was over 5 years old. I decided to buy the oval shaped and was so happy I did. I didn't think it would make that much difference in the fit, but it definitely did. If possible, it fits even better than my old one! I love this helmet.
Date published: 2019-10-22
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Q & A
Videos
How to Shop for a Helmet
Have you ever struggled with the idea of buying a helmet online? Watch this video for tips & tricks on getting the right helmet fit.

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