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Alpinestars Vapor Knee Guards
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  • Alpinestars Vapor Knee Guards - Black
  • Alpinestars Vapor Knee Guards - Black

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$44.95

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Alpinestars Vapor Knee Guards

The Alpinestars Vapor Knee Guards are innovative, ergonomically-optimized and made from light, breathable materials while,robust outer protection structures to provide a close fit, superb articulation and greater impact performance.

Features:

  • CE certified protection systems utilizing robust protective structures and impact absorption padding
  • Thermo-formed polymer material construction offers improved impact performance
  • Highly ergonomic design improves streamlining while providing crucial protection for MX and off-road riding
  • Asymmetrical and lightweight ergonomic panel construction offers extended protection surfaces to reduce rotation
  • Intelligent fastening systems offer greater flexibility, customization and prevent side rotation
  • Dual strap closure system on Knee Protectors are specially designed to offer more comfort and adjustment
  • Top strap mounted above the knee and lower strap positioned for ergonomic fit
  • Advanced 3D poly padding for increased comfort and a close-fitting performance
  • Vented panels and advanced microfibers give comfort to the rider, preventing heat build-up while maintaining tactile contact with skin
  • Creative silicone printed graphic pattern

Sizing:

  • SM/MD: 8-10MM knee width
  • LG/XL: 10-12MM knee width

Alpinestars Knee Brace Sizing:

Size Knee (cm)
SM 8-9
MD 9-10
LG 10-11
XL 11-12.5

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How To Measure

K Knee Using a caliper, measure the width of the knee joint across the kneecap. The leg should be completely straight and in a weight-bearing position.
Product Style RevZilla Item # Manufacturer Product # Availability
Black / SM-MD 844091 6502313-1001SM In Stock: Ships within 24 hours
Black / LG-XL 844092 6502313-1001LXL In Stock: Ships within 24 hours

Shipping

Orders $39.99 and over qualify for our fast free shipping offer. Click Here for FREE Shipping Terms and Conditions.

Please see our International Orders page for orders shipping outside the US.

We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

See our full Shipping Policy for further details.

Returns

If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

Write a Product Review for a chance to win our monthly $100 giveaways.
Alpinestars Vapor Knee Guards 4.2 5 20 20
Better than Fox These fit more securely than Fox or the other brand I tried (I can't remember which). These have an above the knee strap that is a bit too tight but can be altered easily with a small piece of Velcro. This strap makes all the difference in assuring a secure fit. September 23, 2015
Adequate protection for the price Knee guards are great, velcro is adjustable which is great since I bought size LG. When your riding they stay in place, so I am sure they will protect in a crash. Although my only concern is that these are not for walking around, they will slip even with jeans. September 21, 2015
Work well These knee guards fit well and stay in place. As another reviewer noted, perhaps they'd fit under super baggie pants but otherwise expect to wear them as an outer layer. They are very comfortable over jeans and I don't even feel them. Also I didn't have the strap issues that another reviewer mentioned. June 21, 2015
Great value for the money Good bang for the buck, fits good but slightly slides from the tank September 8, 2014
Great buy for the price! Good buy. Fills it's purpose. I've got skinny legs, and they seem to fit fine. Have yet to crash test them, hopefully will never have to. March 19, 2014
Inexpensive, effective I don't want to outfit my wardrobe with a bunch of ugly, ill-fitting kevlar or armor-ready jeans that cost north of 2 benjamins each. I like my clothes just fine. Depending on your style, these guards are great for keeping you safe from point A to B. A couple of people mentioned they are "low profile" and fit "great under work pants or jeans." NOPE - I disagree. I wore these under my relaxed-fit Levis and they are totally noticeable and uncomfortable. But they are great to just wear on top of the jeans/pants and get rolling, that keeps me comfortable and safe. Otherwise it's a simple, cheap, effective pair. True to size. They are L/R specific (asymmetric), designed to give a bit more coverage to the outer sides. One more thing - I like to wear them rotated outwards a bit (see pics) so they cover even more of the outer calves and knee joints. February 12, 2014
Look for a better fit First let me say that they seem to be rather well made(not well designed) for the price and I imagine they would provide good protection based on how they feel, but the fit isn't so great. They seem to be a little on the large side but I'll get into the real problem below. The main issue is with the lower strap. The buckle ends up turning in it's strap which loosens the guard. While riding this isn't a huge problem but gets worse once you get off the bike. They should have designed the buckles in order to prevent them from turning. That would have made the product so much better and I would feel confident in recommending them to anyone. The current design is poor and seems as if they cheapened out on the fastening hardware. My solutions has just been to tighten them a bit more than I would like as it helps prevent the loosen becoming too much of issue when the buckle rotates. I would not recommend them to anyone based on the fact that there appears to be so many different knee guard options and to recommend these would be silly. I have not returned them as I don't think the issue is annoying enough to go through the hassle, but I certainly would not repurchase them and advise others to look for a better product. September 13, 2013
Light, reasonably comfortable. These entry-level guards were a good bang for my buck, however I noticed the following things over the last four months of riding: 1) The square plastic loop through which the calf-strap is fed nearly always rotates lengthwise while the knee guard is worn - which narrows and bunches the strap at that contact point. *See pic. 2) The knee-cup liner material is soft to the touch, however after more than an hour riding I feel a friction burn on my knee. I will remedy this by further lining it with fleece. I suspect that at 5'9" & 185 lbs, had I opted for size M/L instead of L/XL I may not be experiencing one issue or the other. August 21, 2013
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