One K Defender Jr MIPS Matte Helmet 
One K Defender Jr MIPS Matte Helmet
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 45 days of the purchase date. Please ensure the item you're returning is in like-new condition with original packaging. For full details on our returns policy, please visit SmartPak.com/Returns.
Putting your horse's supplements on AutoShip helps you take great care of your horse, so we take great care of you with SmartPerks! When you order your horse's supplements on AutoShip, you're automatically* eligible for our FREE SmartPerks benefits, including:
- Free shipping every day
- 10% off all SmartPak brand tack, apparel, and gear
*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
The Defender Riding Helmet features matte 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 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.
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!
- Smaller internal helmet diameter, a thicker padded liner, and a smaller chin strap for smaller heads and faces
- 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
- MIPS: Yes
- ASTM/SEI: Yes
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STILL HAVE QUESTIONS? SEE Q&A
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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 within 45 days of purchase
- Hassle-free returns up to 60 days from purchase
XS - 47-48CM (5 7/8 - 6)
S - 49-50CM (6 1/8 - 6 1/4)
M - 51-52CM (6 3/8 - 6 1/2)
| MIPS | Yes |
| ASTM/SEI | Yes |