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One K (#27312)

One K Defender Air Suede 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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You'll love our AutoShip because it's:
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PLUS! You'll save % on every shipment if you order this product on AutoShip
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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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*At least one individual AutoShip supplement or horse's SmartPaks must be over $40. Some exclusions apply. Visit SmartPak.com/SmartPerks or call 1-800-461-8898 for details.

Overview

Why We Love This

One K™ horse riding helmets boast the perfect synergy between advanced technology and aesthetically pleasing design. With enough features to appeal to those seeking everything an equestrian helmet could possibly offer, wrapped in a package that traditionalists can appreciate, One K™ has the best of both worlds. The One K™ Defender Air uses the Air pump system that provides the ultimate in comfort & custom fit. The 3 hidden air pockets in the liner inflate by depressing its concealed air pump until you get the fit you want.

The Defender Air Helmet features a Chamude® synthetic suede covered Polycarbonate and Advanced ABS Composite outer shell; injection molded shell design; quick-dry, moisture wicking, anti-microbial liner; stainless steel mesh; comfort padded harness with synthetic suede lining, hook & loop adjustment, and Fastex buckle; two side, two front, one back, and two center stripe vents. One K™ Horse Riding 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 and CE EN 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!

  • Three hidden air pockets in liner inflate by pressing a concealed air plump in the harness to achieve desired fit
  • Chamude® synthetic suede covered Polycarbonate and Advanced ABS Composite outer shell
  • Two side, two front, one back, and two center stripe vents
  • Comfort padded harness with synthetic suede lining, hook & loop adjustment, and Fastex buckle
  • Washable quick-dry, moisture wicking, anti-microbial liner
  • ASTM/SEI F1163-15 certified
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
What Customers Say:
Sizing Chart for One K Defender Air Suede Helmet
Specifications
ASTM/SEI Yes
Oval Yes
Round Yes
Reviews
One K Defender Air Suede Helmet is rated 4.8 out of 5 by 4.
Rated 5 out of 5 by from Perfect and very comfortable I'm between size M and Large. I had a hard time to find the right helmet for me. This helmet is perfect for me. It is comfortable and light as well. I recommend this helmet !!!
Date published: 2021-04-18
Rated 4 out of 5 by from Oh wow! I didn't know what to expect when I bought this helmet. I have been riding with the same helmet for quite some time and wanted something for a dressage show. Mail ordering stuff can be a challenge but this helmet, it was perfect right out-of-the-box. I imagine I will have it for a long long time and hope that I keep it clean for shows and don't like it so much that I wear it every day
Date published: 2018-09-12
Rated 5 out of 5 by from Great helmet I really needed a size small helmet, with the small there is no room to put my hair up. I ordered the air in a size medium, and it adjusts down enough to wear with my hair down. Just what I needed!
Date published: 2018-06-19
Rated 5 out of 5 by from Amazing helmet!! I absolutely love this helmet. It stays snug, but also isn’t cutting off any blood circulation.
Date published: 2018-05-26
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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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