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One K (#27331)

One K Defender Chrome Stripe Helmet

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(Because you have supplements on AutoShip, you can save an extra 10% on this and all other SmartPak tack & apparel items! Enter promo code PERKS at checkout.)
Your Price:
(You save 5% as a member of . Because you have supplements on AutoShip, you can save an extra 10% on this and all other SmartPak tack & apparel items! Enter promo code PERKS at checkout.)
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Save 10% Every Day!

Put your horse’s supplements on AutoShip to SAVE 10% every day on all SmartPak brand tack, apparel & gear.

Ride Along Item(s):

The few add-on items we have can be shipped free by syncing them with your supplement on AutoShip, shipping on a Barn Saver Shipping day, or by having a group of add-on items that total over $75. Have questions? Visit SmartPak.com/SmartPerks or call 1-800-461-8898 anytime.

*At least one individual AutoShip supplement or horse’s SmartPaks must be over $40. Some exclusions apply.

Ride Along Item Ships free with a qualifying item. Details

Save 10% Every Day!

Put your horse’s supplements on AutoShip to SAVE 10% every day on all SmartPak brand tack, apparel & gear.

Ride Along Item(s):

The few add-on items we have can be shipped free by syncing them with your supplement on AutoShip, shipping on a Barn Saver Shipping day, or by having a group of add-on items that total over $75. Have questions? Visit SmartPak.com/SmartPerks or call 1-800-461-8898 anytime.

*At least one individual AutoShip supplement or horse’s SmartPaks must be over $40. Some exclusions apply.

Free Ground Shipping
Free Return Shipping
SmartPak Return Policy - YouTube

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'!).

Customize your program:
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FINAL SALE - This item cannot be returned or exchanged.

FINAL SALE - This item cannot be returned or exchanged.

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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
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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AutoShip Savings applied
Start date: Customize your program for estimated start date. View estimated schedule
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Zone Map
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.
Program Type Shipment/Application Frequency
Regular Programs: Ships every 4 weeks. For low to average fly levels, frequent manure management and few neighbors.
Premium Programs: Ships every 3 weeks. For high fly levels or weekly manure management or nearby livestock.
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Before purchasing this item, please note:

  1. This item can't be shipped to a PO Box.
  2. This product will be shipped directly from the manufacturer using a shipping company.
  3. The freight company will call you to schedule a delivery appointment.
  4. If SmartPak and the shipper are unable to contact you within 7 business days of the product shipping out, your order will be cancelled.
  5. You may be liable for any storage fees due to missed delivery appointments or requests for dates beyond the standard delivery window.
  6. When your shipment arrives, you will be responsible for inspecting the shipment to make sure it's complete and that no items are damaged.
  7. Before accepting the shipment and signing for it, you must record missing items and damaged items on the receipt, and take pictures of any damage.
  8. SmartPak and the manufacturer will not be able to assist you in filing a claim if you haven't noted any damage on the receipt. You will be responsible for filing any claims.

Shipping is not available to Alaska or Hawaii for this item. We apologize for any inconvenience.
Unfortunately, we cannot guarantee that customization items will be delivered by Christmas. If you're adding customization to this item, please note the estimated arrival date in your cart.
Order within and have it by Shipping to
Add these items to your cart to get your estimated arrival date. Shipping to
All customized items are personalized in our Plymouth, MA facility, and it looks like this item is currently out of stock in that location.
Please call 1-800-461-8898 to order this product.
Lowest Price Guaranteed
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 this item is currently out of stock. Our team is working to get it back in stock asap.

SmartPerks 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

Learn more about SmartPerks

*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 Chrome Stripe 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™ English Riding 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.

Additional One K Helmet Liners also available!

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!
  • 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
  • SEI/ASTM F1163.15
Key Specifications
  • ASTM/SEI: Yes
  • Oval: Yes
  • Round : Yes
Ingredients
(Maintenance Dose = )
Ingredient Amount
Sizing
What Customers Say:
Sizing Chart for One K Defender Chrome Stripe Helmet
Specifications
ASTM/SEI Yes
Oval Yes
Round Yes
Reviews
One K Defender Chrome Stripe Helmet is rated 4.9 out of 5 by 7.
Rated 5 out of 5 by from excellent helmet at a reasonable price I've been wearing helmets for 30 years and have gone through a range of brands and styles. They have evolved tremendously. I just ordered a new One K after two years because I wanted to try a size up. I think the cushy inside padding makes it a bit too snug for my head and required me to go a size up from what I normally wear, although it still fits better than any other helmet I've worn because I can get the shape my head needs. This is my current favorite helmet, next to GPA, which has better airflow for hot days. However, the One K has two fitting options, which is a big step up from a one-shape-fits-all approach of most helmet makers. I need the long oval, which provides a more comfortable fit without the sliding or overly snug fit required for a round to stay on properly. The chin strap even has velcro to secure the end so it doesn't flap around while riding. This is a great helmet for the price. It just needs better airflow and it would easily overtake the GPA, which costs more than twice as much. I love the features, the fit, and the style of this helmet and have become a loyal buyer. Like all reputable helmets, this even comes with a care guide that states it has a 2 year limited warranty. I haven't had to test it's full durability (thank goodness), but it never moves when I'm riding and it has the necessary certifications that it has been tested, so I trust it.
Date published: 2022-08-11
Rated 5 out of 5 by from Very comfortable, secure helmet I've ridden in GPAs for a long long time but wanted to try and find something a bit more affordable. The fit is excellent, and it feels and looks like it is way more expensive than it is. I feel very protected and it is relatively cool in the summer
Date published: 2020-06-24
Rated 4 out of 5 by from I really like the fit of this helmet. Very comfortable, great quality and affordable . The only thing is it can get little scratches in the paint easily.
Date published: 2019-05-20
Rated 5 out of 5 by from Comfortable helmet with great fit! This helmet fits so well and is super comfortable! It is quite light and cool.
Date published: 2018-09-26
Rated 5 out of 5 by from Great helmet at a great price Really love the look and feel of the One K Defender with Chrome stripe. Very comfortable and love that it comes with two removable liners. The removable liners were the main selling point for me. Would highly recommend this helmet to anyone. It looks very similar to the Samshield helmets at half the cost.
Date published: 2018-07-18
Rated 5 out of 5 by from so comfortable I was in the market for a new helmet as I had mine for 5 years. I have always wanted a One K helmet. I bought the oval helmet and it fits me like a glove. Its super pad inside and it keeps my head super cool. I feel so much safer in this helmet.
Date published: 2018-06-21
Rated 5 out of 5 by from Great helmet Purchased this a month ago and love it get a lot of compliments on it
Date published: 2018-06-19
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Videos
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