Product Code 470562
One K™ Defender AIR
MSRP $354.95
Rated 5.00 out of 5 based on 2 customer ratings
(2 customer reviews)
The Perfect Equestrian Riding Helmet Fit for Inbetweeners! The secret is in the Air pump system that provides the ultimate in comfort & custom fit.
Additional information
Sizes | X-Large, X-Large Long Oval, X-Small, X-Small Long Oval, Small, Small Long Oval, Medium, Medium Long Oval, Large, Large Long Oval |
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Colors | Black Matte |
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Description
The Perfect Fit for Inbetweeners!
The One K Defender Air riding helmet is the perfect helmet if
- Your head is not exactly round, nor exactly long oval!
- You are between standard helmet sizes, or just plain hard to fit
- You like to adjust the fit of your helmet throughout the day
- You sometimes wear your hair up, other times down
So how can One K Defender Air riding helmets be so adjustable?
The secret is in 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 horseback riding helmet features a 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 side, two front, one back, and two center stripe vents. One Kâ„¢ 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 Kâ„¢ has the best of both worlds. Certified to ASTM standards.
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Specification
- Three hidden air pockets in liner inflate by pressing a concealed air plump in the harness to achieve desired fit
- Matte 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
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).
One K™ Defender AIR Features


Ventilation
Ventilation mesh on both sides, front, top, and back of helmet for a sporty look and maximum airflow.

Air Pocket
3 hidden air pockets in liner inflate by depressing concealed air pump until desired fit is achieved.
Stainless Steel
Stainless Steel Mesh won’t rust.

Release Valve
Release Valve deflates air chambers.
Fastex Buckle
2 reviews for Defender AIR
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**ASTM F1163-04A AND CE EN 1384 CERTIFIED HELMETS (HELMET NOTICE, DISCLAIMER, AND WARNING)Dual Certified
All equestrian sports are inherently dangerous and involve the risk of serious injury or death. Riders using these products ride at their own risk with full knowledge of the hazards and risks associated with their activities. Helmets are designed for equestrian use only. Helmets cannot offer complete protection from injury or death to riders in case of fall, collision, impact, loss of control or otherwise. Helmets cannot protect areas of the head that are not covered. Helmets offer no protection against injuries involving forces other than impact. CAUTION: HELMETS MUST FIT WELL AND ALL RETENTION STRAPS MUST BE SECURELY FASTENED. Helmets are constructed so that the energy of an impact may be absorbed through partial destruction of the helmet. Helmets that suffer an impact should be destroyed and replaced. The protective qualities of helmets may be compromised by prior impact, age, use and many common substances. Always follow the manufacturer’s recommendations before applying cleaning agents, paints, or adhesives. English Riding Supply disclaims any responsibility for injuries or death incurred while wearing any of the helmets offered for sale. Representations regarding testing results, equipment ratings, product specifi cations, ASTM and/orSEI standards, and the adequacy of all such standards and designations are made solely by the product’s manufacturer. English Riding Supply does not warrant or confirm the representations of the manufacturers. English Riding Supplly makes no representations express or implied regarding the fi tness of these products for any particular purpose nor the extent to which the products protect riders from injury or death.
Lyles Perkins –
I love this helmet. I have one for everyday use and one for showing. Just wish they offered it in navy.
Deborah Geddis –
Absolutely the perfect hat I would recommend it 100% The best hat I have ever tried on and I have been riding for the last 25 years !!!!!