Product Image
 Rollover image to magnify
Additional Views
Additional Colors and Styles

One K Defender Suede Helmet

One K
- Item #21806
Ground Shipping
Return Shipping

Sign in to choose an existing horse
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 Suede Helmet is perfect for schooling or the show ring!  Features two side, two front, one back, and two center stripe vents that keep you looking good and staying cool in any weather. 

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
  • Comfort padded harness with synthetic suede lining and Fastex buckle
  • Chamude® synthetic suede covered

Sizing It Up

You Might Like
    out of 5
    100% of customers would recommend this product to a friend!
    Tell us what you think!

    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.

    • Review 0
    • Votes 0
    • Discipline:
    • Expertise:
    • Product
    • Competitor:


    One K Defender Suede Helmet is rated 4.8788 out of 5 by 33.
    Rated 5 out of 5 by from Love it! Was afraid it wouldn't fit. I bought this after taking a fall with my Charles Owen AYR8 and deciding to look for something a bit more ventilated. I was afraid the OneK wouldn't fit, since a lot of people say if the CO fits you then you must have a long oval head and this won't. I think if anything this helmet might fit me better! In comparison, the Pegasus helmets do NOT fit me, they are very round. I bought from SmartPak because I knew if it didn't fit, I would be able to return for free and get something that did. I have only ridden in it once in warm weather, so I can't really attest to how much better it is sweat-wise than the CO yet, but there is certainly more airflow. This helmet is super comfortable, and a great price. Between this and CO, I would go with this one, hands down.
    Date published: 2015-03-06
    Rated 5 out of 5 by from Love this helmet!! This helmet was my first real expensive helmet purchase (ie. over $100), and I'm so glad I chose this one! It's cute, it's ventilation keeps my head cool, and I just love it. I get so many compliments on it, and the grey suede is just enough to stand out but without being too gaudy. Highly recommend this helmet!
    Date published: 2015-03-02
    Rated 5 out of 5 by from Love my One K Helmet I love my new One K helmet. I have an IRH but it has never fit right. This One K, fits perfectly and I love being able to replace the liner when it gets dirty!
    Date published: 2015-02-27
    Rated 5 out of 5 by from Love it 100%! I bought this helmet last year as an upgraded show helmet from my IRH. I stared showing all rated shows so it was a much needed upgrade. I tried it on and loved it!! Very very very comfy and very secure. It thankfully runs a tad large for us riders that ride in hairnets with all of our hair inside the helmet. It has recently become really popular at the rated shows in hunters, jumpers and equitation. Love it!
    Date published: 2015-02-08
    Rated 5 out of 5 by from Great riding helmet Helmet looks great and fits great. Only minus is that the chinstrap leaves a black shadow (beard) on my face after wearing it for an hour or so. Hope this stops the more I wear it.
    Date published: 2015-02-05
    Rated 5 out of 5 by from Great design and ventalization A perfect fitting and ascetically pleasing helmet! Love the comfort of the chin strap as well.
    Date published: 2015-01-28
    Rated 5 out of 5 by from Great Helmet! I spent a long time debating which helmet I wanted and thought I wanted a Charles Owen. However, when I tried them on in the store I found that the C.O's hit my ears and were not comfortable. So, I tried the One K. It is wonderful! It does not hit my ears, and the back goes down far enough that I feel protected. It is very comfortable and is light. I can't comment on how hot it is as it's the middle of winter. I do not think it will be too hot though. Additionally, the liner is removable and can be laundered--a big plus. Many helmets nowadays do not allow that.
    Date published: 2015-01-18
    Rated 5 out of 5 by from Excellent helmet This helmet was for our daughter who is very happy with it.
    Date published: 2015-01-08
    • 2015-04-01T07:00CST
    • bvseo_cps, prod_bvrr, vn_cps_3.1.1
    • cp_1, bvpage1
    • co_hasreviews, tv_1, tr_32
    • loc_en_US, sid_11806, PRD, sort_mostRecent
    • clientName_SmartPak
    Have questions? Contact us »
    Connect with us:

    Brittany and Nate
    Ever since I was the girl with 1,000 breyer horses and the raggity braid in her hair, I was always obsessed. In second grade I moved into a town with a barn right down the street, which is when I started taking lessons...

    Learn more »

    Meet Nicole and Truckee
    Success Profile: Truckee Quiet Breed: Thoroughbred Age: 9 Discipline: Hunter/Jumper Owner: Nicole Roca Truckee Quiet is learning how to be a hunter, but he can’t quit his day job! Our dairy sheep rotate through pastures and Truckee is my number

    Read More »

    Download our mobile apps

    Put SmartPak in your pocket with these awesome apps!

    Check It Out »

    Healthy horses, happy riders.
    SmartPak is committed to a greener planet.
    Sign Out
    Sign Up Now!
    Free Catalog Get Yours Now!

    SmartPak Equine™ is the premier online provider of horse supplies and equine supplements.
    Questions? Call us Toll-Free at 1-888-339-9695. © Copyright 2014 by SmartPak Equine LLC. All Rights reserved.