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One K Defender Matte Helmet

One K
- Item #21807
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We're bringing you this product at the lowest price allowed by the manufacturer. That means this item isn't eligible for additional discounts or promotions.

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 use the pre-paid return label included in your order within 60 days from 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'!).

Why We Love This

The One K Defender Matte Helmet is sure to keep you cool with two side, two front, one back, and two center stripe vents! This all-around stylish helmet is great for both schooling and showing in a number of different disciplines!

Favorite Features

  • Polycarbonate and Advanced ABS Composite outer shell with an injection molded shell design
  • Inner lining is anti-microbial, moisture wicking, quick drying, and washable
  • Stainless steel mesh
  • Comfort padded harness with synthetic suede lining and Fastex buckle


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    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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    One K Defender Matte Helmet is rated 4.7419 out of 5 by 31.
    Rated 5 out of 5 by from Love this helmet! I decided to purchase this helmet after my old charles owen jr8 got too small. Originally I wanted to get another CO or a samshield, but that was until I tried on this helmet. It is by far the most comfortable helmet I've ever worn, has super ventilation that actually works, and is also super low profile even on smaller heads (no more egg head for me!!). The comfortable chin strap and removable liner are an added bonus as well. Could not be happier with this product and I don't think I'll be switching from one k anytime soon.
    Date published: 2015-05-05
    Rated 5 out of 5 by from Great helmet. Great price. I live in coastal South Carolina and it is HOT during the months of July, August & September. This is the first helmet I have had with good ventilation at a good price. It is also the most comfortable helmet I have had in years. I cut all of my hair off so had to get a smaller helmet. The One K Defender helmet has been fantastic. Really love it.
    Date published: 2015-04-28
    Rated 5 out of 5 by from Love! This helmet is comfortable, looks good, and is on the inexpensive side. It seems like an affordable version of a Samshield. I love the removable liner. I haven't been able to test it in the heat yet, but it feels nice and light while still being substantial enough to save my head. :D My favorite thing about it, though, is that it looks as nice as a $400 helmet for half the price!
    Date published: 2015-03-10
    Rated 5 out of 5 by from Great helmet at a great price! I needed a new helmet but I didn't want to pay $500 for one. I had tried on this helmet at a local tack shop and I loved it! I chose to buy my helmet through smartpak because they have wonderful customer service and a price that couldn't be beat! The helmet is a great fit though a little tight when my hair is up inside it. That's not a problem though because in due time I'm sure it will stretch just enough. I highly recommend this helmet for the rider on a budget!
    Date published: 2015-02-28
    Rated 4 out of 5 by from Nice schooling hat Great quality helmet, good shape and nice added ventilation. Sizing is accurate. The chin strap has a lot of added pieces on it which take some getting used to, but overall they are not bothersome.
    Date published: 2015-02-25
    Rated 5 out of 5 by from Great helmet I have had this helmet less than a month but have used it probably 20 times and I love it. It fits really well like it was made just for me, I didn't even have to adjust the straps! Very comfortable and well worth the price.
    Date published: 2015-02-17
    Rated 5 out of 5 by from Great fit I love my new helmet! It is very comfortable, stylish and easy to care for. I like that the liner is removable for more stinky helmets. Haven't used it in the heat of summer, but look forward to the improved airflow.
    Date published: 2015-01-30
    Rated 4 out of 5 by from great helmet! This helmet is super comfortable and the liner is awesome, it looks great AND at a reasonable price! The only con to it is the chin strap, and its only that it is a little stiff out of the box and sits a little bit forward on my chin, but other than that its super!
    Date published: 2015-01-26
    • 2015-05-27T09:36CST
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