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Hit Air (#19904)

Hit Air® Advantage Airbag Vest

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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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Why We Love This

The Hit Air Advantage Vest is a culmination of more than a decade of experience in airbag technology by MUGEN DENKO, LTD. The Hit Air Airbag Vest is a "harness type" airbag that employs the new higher speed key ball mechanism which activates the CO2 cartridge.  Versatile design makes it perfect for riders of all equestrian disciplines including Eventing and Western. Imported.

This vest is designed for adults, and to deploy properly the rider must weigh a minimum of 100lbs. If a rider is under 100lbs, please contact our Customer Care Team – we would be happy to help select the right vest!

Includes: Instruction Booklet, Canister-Changing Tool, (1) Canister, (1) Saddle Strap, & (1) Lanyard

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.

  • Top fast: 0.09 sec deployment time!
  • Attention to detail is unmatched by any other brand of airbag apparel
  • The neck airbag is significantly larger than the leading competitor's
  • The neck airbag inflates first, where most injuries occur, followed by (in only fraction of a millisecond) the torso and hip airbag
  • The key box where the CO2 cartridge is deployed is protected from dust and dirt and provides sound insulation to minimize spooking the horse during an unintended deployment
  • Added comfort in the saddle because the hip air bags are concealed inside a special pocket making it unnecessary to have a long "duck tailed" style that can be uncomfortable in the saddle
  • Cool to wear due to the open design
  • Cartridges:  S and M uses 50cc 


Key Specifications
  • Closure Style: Buckle
  • 100% Happiness Guarantee
    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
    • Hassle-free returns up to 365 days after purchase
(Maintenance Dose = )
Ingredient Amount
This vest is designed for adults, and to deploy properly the rider must weigh a minimum of 100lbs.
What Customers Say:
Sizing Chart for Hit Air® Advantage Airbag Vest
Closure Style Buckle
Accessories Included Instruction Booklet, Canister-Changing Tool, (1) Canister, (1) Saddle Strap, & (1) Lanyard
Customizable No
Special Features Please Note: For proper use of this vest, Riders must weigh a minimum of 100lbs or more
Hit Air® Advantage Airbag Vest is rated 4.6 out of 5 by 43.
Rated 5 out of 5 by from Amazing vest, poor support from SmartPak I love this vest. I've had mine for three years now. It is light, breathable, and adjusts around bulky winter clothing. Unfortunately, SmartPak does not carry any of the accessories and I've ended up purchasing them through other vendors.
Date published: 2021-03-17
Rated 5 out of 5 by from Worth every penny and more I currently have an eight-year old green mare in training, and I decided that having one of these vests would not be a bad idea (I'm not as fearless as I used to be in the saddle). Today was a seemingly normal day in the saddle until a dog came around the corner of the barn and caused my horse to spook. She bolted and I lost my seat and the reins. As she cantered around the corner of the arena, I fell into the arena fencing. I literally felt no pain in my neck, back, or chest as I hit fence and landed in the dirt. In the past, my neck always gets jerked around during a fall, but the Hit Air vest prevented that completely. This is worth every penny and more!
Date published: 2020-01-30
Rated 5 out of 5 by from It Works! I "tried" this vest in an open air arena a couple of weeks ago. My 19 yo lease TB spooked and my whip in hand brushed him. He bolted a bit, I flew threw the air over a low dressage rail and landed about 6 feet away. The landing was on my back none the worse for the fall. He's about 16' 3 and I'm 5' 4" --- we were trotting at the time. Some folks, I guess, worry about what it says about them to wear a vest on any horse --- let alone a good guy. I just worry about being able to do what I enjoy as often and as long as I can. 2 hours after this fall I went for a couple mile run and the next day was back up on my horse. Pro Tip: The manual that comes with the vest explains how to "set the strap" length so it does go off. Make sure you read and follow those directions. It is possible to dismount and have it not go off. I did this before my fall and was surprised. The day of my fall I set the strap length, whew, good move. I'm sure it would have deployed given the distance I went but still....
Date published: 2019-06-26
Rated 5 out of 5 by from My vest deployed today... I bought this vest a couple of months ago after an unintended dismount into a soft plowed field. I’m middle aged and a newer rider, so I wanted something to minimize the chances of a serious injury. I tried most of the vests SmartPak offers, and did not like the “ballistics vest” feel; I’m short-waisted, busty, and they were just cumbersome and uncomfortable. I’ve ridden dirt roads, trails, and arena with this vest on, trotting or loping in all locations. Unlike the ballistics-style vests, this does not interfere with my seat (short/short-waisted folks take note). It’s very comfortable - a tiny bit warmer than just a t-shirt, but worth the peace of mind. Today I had another unintended dismount into an arena with a hard base layer under the sand. The vest deployed while I was about level with my horse’s shoulder. The noise was not startling enough to spook my horse while I was midair; the clinician thought it was her fabric arena snapping in the wind. The vest functioned exactly as described, protecting my neck, ribs, and abdomen. My only note is that due to the angle I achieved in midair, I landed on my tailbone. I’m going to be a little sore for a few days, BUT I did not crack ribs, injure my shoulder/collarbone, strain my neck, etc, etc. My only note is that if you use this with a Western saddle, be sure to secure the strap to your swells and horn through multiple loops. I was able to dismount once without triggering the vest, and thus added another loop around my horn. Today I was glad I’d done so, as I think the vest deployed when I was higher in the air than it would have. This vest is expensive and IMO worth every penny. I just ordered a 3-pack of replacement cartridges. I feel even more confident knowing the vest performs exactly as described.
Date published: 2019-06-09
Rated 5 out of 5 by from Super Comfortable and Great Fit After breaking my neck as a result from a bad equestrian fall I am so happy this vest gives me a sense of security. So easy to wear. Don’t even notice it when schooling or competing.
Date published: 2018-08-15
Rated 5 out of 5 by from Great product! I just purchased this vest a couple weeks ago. I wear it every time I ride. It's very comfortable.
Date published: 2018-05-16
Rated 4 out of 5 by from Very comfy I wanted something light weight with out all the bulk and being able to move freely was a big thing I ride western so when I looked at this vest I did a lot of product research do to the cost and I found that everyone loved it so I took the plunge a little skeptical about the attachment to activate it I attached it to my pommel I had plenty of free movement without getting caught up in it and free to move around in the saddle as a trail rider would I give it’s 4 stars because I hope I never have to use it but if I didn’t or I hope it makes the 5 Star
Date published: 2018-04-04
Rated 5 out of 5 by from Worth Every Penny! I bought this last Xmas, husband insisted. 54yrs old jumping 3'3-3'6 2x-3x times a week. Amateur, full time job, mortgage, etc. I have come off 2 times and it has worked perfectly every time! Maybe a bruise here and there but nothing major! Not hard to change cartridge-just follow the guide. I wear every time I jump, a great piece of safety equipment and mind. Be Smart!
Date published: 2017-08-01
Rated 5 out of 5 by from Highly recommended I bought this after coming off my horse and taking quite awhile to recover from broken ribs. It was recommended to me by a woman that was wearing it when she fell and had no injuries from which to recover. At age 66 I don't bounce anymore. Better than bubble wrap!
Date published: 2017-07-11
Rated 5 out of 5 by from Low Profile Safety Vest I was pleasantly surprised by how low profile this vest was when I got it. The CO2 canister arrivers separately, I read through the attached booklette pretty easy to assemble. I did read other reviews who mentioned the vest runs small. I found the opposite. I got the smallest size (since I run a size 2 in regular clothing) and it was a little big for me. I adjusted the internal belt which helped, but its still a tad large around the chest. I attached it using the hand grab supplied to my saddle and was ready for action! We live in So. CA, so it did run hot to ride in (and its only May!). It does allow for some air flow as the vest is partially open. But overall honestly, after 2 bad falls in 12 months, its worth the peace of mind. Highly recommend! It was backordered but I ordered anyway based on the recommendation of the rep I talked to and it arrived before the date stated.
Date published: 2017-05-09
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Q & A
How to replace air cartridges in Hit Air vests
Whether you're a barn manager, trainer, experienced eventer, or parent, the ability to change the CO2 cartridges in air vests is an essential skill in staying safe in the event of a fall. In this video, SmartPaker Cora walks you through step-by-step how to change the air cartridge in a Hit Air vest. Need replacement cartridges for your Hit Air vest? You can get Hit Air Replacement Cartridges from SmartPak in packs of 3 or individually ( The vest used in this video is the Hit Air Equestrian Super Light Weight Vest (

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