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One K Defender Matte Helmet

One K - Item #21807
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Free Return Shipping

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:
  • Focused on happy riders - never worry about running out!
  • Easy to snooze or cancel online, anytime
  • Totally flexible - edit your order as often as you'd like
PLUS! You'll save % on every shipment if you order this product on AutoShip
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You'll love our AutoShip because it's:
  • Focused on healthy s, because consistency is key
  • Easy to snooze or cancel online, anytime
  • Totally flexible - edit your order as often as you'd like
  • Your VIP pass to FREE SmartPerks benefits
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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Ships every 4 weeks. For low to average fly levels, frequent manure management and few neighbors.
Ships every 3 weeks. For high fly levels or weekly manure management or nearby livestock.
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We're bringing you this product at the lowest price allowed by the manufacturer so you won't find it cheaper anywhere else. This also means we can't apply any further discounts or promotions.
We're sorry, but certain colors/sizes are sold out and are no longer available.

Why We Love This

One K™ Defender riding helmets boast the perfect synergy between advanced technology and aesthetically pleasing design. This helmet features a polycarbonate and advanced ABS composite outer shell that’s tough but lightweight with a modern matte finish. It’s offered in both an oval shape and a round shape so that you can find the perfect fit for your head. You’ll love that the liner is moisture wicking, quick drying, anti-microbial, and washable to keep you cool, dry, and comfortable. Plus, the harness is padded for comfort and lined with easy-to-care-for synthetic suede to keep you as comfortable as you are stylish. It even has a Fastex buckle that makes taking it quick and easy to take on and off. Additionally, you’ll have plenty of ventilation with two side, two front, one back, and two center stripe vents for a total of seven vents. Last but not least, this helmet is ASTM/SEI F1163-15 certified, so you can have peace of mind that your head is in good heads. With enough features to appeal to those seeking everything a horseback riding helmet could offer, wrapped in a stylish package that traditionalists can appreciate, One K™ has the best of both worlds.

Additional One K Helmet Liners also available!

Imported.
  • Polycarbonate and advanced ABS composite outer shell is tough but lightweight
  • Offered in oval and round shapes for a great fit
  • Inner lining is anti-microbial, moisture wicking, quick drying, and washable
  • Comfort padded harness with synthetic suede lining and Fastex buckle is comfortable, easy to use, and stylish
  • ASTM/SEI F1163-15 certified
  • Lots of vents to keep you cool and dry
  • Stylish design looks great in the ring
STILL HAVE QUESTIONS? SEE Q&A 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 back every order with our 100% Happiness Guarantee so that you can shop with confidence. If you're ever less than thrilled with your purchase, just let us know and we'll refund you right away. No hassles, no hoops, no kidding.
Hassle-Free Returns

SmartPak Returns

We put our products to the test in our barns and on our horses, so we're confident that you'll be thrilled with your purchase. However, we know that life in the barn can sometimes be unpredictable. That's why we've created a stress-free return policy. If you purchase an item and it doesn't meet your expectations, we want to know about it, take care of you and give you your money back.

Free Return Shipping on all Sized Items

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'!).

The Fine Print

We love our products and we're happy to take them back - even custom items. We'll happily take back everything from engraved halters to personalized jackets - even embroidered blankets that have been worn (minus the manure, please). But there are a few things we have to restrict returns on (silly federal regulations).

Undergarments
Health regulations require that undergarments (including bras) need to be in new condition (tags and packages intact) in order to be returned. (Even if it wasn't required, do you really want to shop from a store that takes back used undergarments?!)

Saddles
As riders, we know what a big investment a saddle is. That's why we're proud to offer the best Test Ride program in the business. You can keep our Test Ride saddles risk-free for five days, to really make sure you like the fit and the feel. We know that to truly try a saddle, you have to really ride in it. So go ahead and girth it up. Forget about wrapping your stirrup leathers. Try it with or without a saddle pad. Basically, treat it like you already bought it, so you can make sure you really want to. Because when you buy a saddle from us, we want to make sure you love it. Of course, we want our other customers to love their new saddles, too.
That's why we have a Test Ride option for each saddle we carry - so that all of the other saddles can stay in pristine condition, waiting for their new owners. For this reason, if you purchase a saddle outside the Test Ride program, it's still eligible for return, but must be free from any marks or damage.

So that's it. Seriously. Those are all of our "rules." Well, except the most important one - treating our customers the way we want to be treated. So if you have any questions or if there is anything we can do, please call us at 1-800-461-8898 or email CustomerCare@SmartPak.com. We are always happy to help.

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The reviews provided on this website represent the experience of the individual posting the review. We do not adopt, edit, or endorse any of the submissions posted within the reviews section. Rather, the reviews are part of an online community of animal owners that desire to share their particular experience with other individuals. These reviews are not a substitute for discussing the health of your animal with a veterinarian.

SmartPak customers are some of the most conscientious animal owners around. We encourage you to share your experience with the products we sell to help fellow customers to make informed choices for their animals. We do not edit these reviews in any way - they are direct customer-to-customer communication. We do monitor reviews for positive and negative feedback, and use this feedback to improve our selection as well as sharing feedback with product manufacturers to help them improve their products. Please note that we recommend consulting your vet with serious health issues.

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    Reviews

    One K Defender Matte Helmet is rated 4.7 out of 5 by 175.
    Rated 5 out of 5 by from Favorite helmet I've owned so far! Love this helmet. It's comfortable and much cooler than my Charles Owen. It's nice enough to wear to most shows.
    Date published: 2020-09-22
    Rated 5 out of 5 by from Best helmet! I catch myself wearing this helmet long after I've dismounted. It's like it's molded to my head. Lightweight, hugs my head. Can't say enough good things about this helmet. It was recommended to me and I'm so glad I bought!!
    Date published: 2020-07-28
    Rated 5 out of 5 by from Exactly what I’ve been looking for I’ve been looking for the right helmet for myself for years....this is it! The long oval fits me great. I get headaches when I wear helmets and this one does not cause me any issues. It doesn’t put pressure on my temples which is great. The helmet tends to sit higher on your head so it relieves compression from that area. Ventilation is also AMAZING. I rode in 85 degree weather and my head didn’t sweat! Love this helmet.
    Date published: 2020-07-19
    Rated 5 out of 5 by from Fits great! Love the oval option. Other helmets only offer a round fit which was uncomfortable. This one fits great!
    Date published: 2020-06-02
    Rated 5 out of 5 by from Perfect Fit! This helmet fits so well. I have a small head and a narrow face...the long oval fit perfectly.
    Date published: 2020-05-09
    Rated 5 out of 5 by from Nice helmet Only weird thing are the straps the way they fit. But the helmet is much more comfortable than a Charles Owen!!! lightweight and not hot at all.
    Date published: 2020-04-06
    Rated 5 out of 5 by from I have only had this for a month, but ˆ like it. t fits my head really well.
    Date published: 2020-01-17
    Rated 5 out of 5 by from Love it As others have commented, the position on the chin strap feels odd... but only the first time I wore it. I never think about it now. The helmet feels truly comfortable, it is really secure on my head without being too tight and I like that the lining is washable (my previous helmet got to the point were it was disgusting)
    Date published: 2020-01-17
    Rated 5 out of 5 by from Perfect for Round Heads I'm on my second One K, and I love this helmet! I have a round shaped head, and helmet like the Charles Owen often give me headaches on the sides of my head. This helmet fits exceptionally well, and the moment I first put it on it felt secure and like it would provide great protection in a fall. It's light enough with great ventilation for the Texas summers, and I really like that the liners are removable so you can wash them. Turns out I'm on my second one because I did fall off my 4 year old. It was a shame throwing out the first one because it still looked beautiful, but I'm thankful to have had such a well designed helmet on my head!
    Date published: 2019-12-26
    Rated 5 out of 5 by from Comfortable and good looking! This is the second One K Defender helmet I’ve owned. I’ve tried a lot of others because I have a horse-stuff buying sickness (LOL!). This is, by far, the most comfortable and good looking helmet I own. Pay attention to whether you need the round one or the oblong one. I needed oblong and was surprised because I’ve never thought of my head being oblong. After measuring it, it obviously is. I love how it fits!! You can’t go wrong... it looks great in the barn and at the shows!
    Date published: 2019-12-20
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