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🖤 Ride hard, land safe — Demon Hyper X keeps your knees fearless.
The Demon Hyper X D3O V3 Knee Pad is a medium-sized, high-performance protective gear designed for mountain biking, BMX, MX, and snowboarding. Featuring a Kevlar front panel for abrasion resistance and D3O shock-absorbing foam, it offers superior impact protection. Its dual hook-and-loop straps and soft terry cloth interior provide a comfortable, secure fit, while perforated neoprene ensures breathability. Backed by Demon United’s quality guarantee, these pads have proven durability through extensive real-world use.









| ASIN | B06W9DHQDD |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #85,047 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #68 in Skate & Skateboarding Knee Pads |
| Brand | DEMON UNITED |
| Brand Name | DEMON UNITED |
| Closure Type | Hook,Loop,Velcro |
| Color | black |
| Customer Reviews | 4.6 out of 5 stars 1,043 Reviews |
| Fabric Type | neoprene, polyester |
| Form Factor | Shell |
| Global Trade Identification Number | 00650327348509 |
| Included Components | Pair of knee pads |
| Item Dimensions | 12 x 8 x 5 inches |
| Item Package Quantity | 1 |
| Item Type Name | Knee Pads |
| Item Weight | 2 pounds |
| Manufacturer | Demon United |
| Material | Neoprene |
| Model Name | Demon Hyper X D3O Knee Pads |
| Model Number | ds5125 |
| Number of Items | 1 |
| Part Number | ds5125 |
| Product Care Instructions | hand wash in cool water-air dry |
| Size | MEDIUM |
| Specific Uses For Product | mountain biking |
| Sport Type | mountain bike |
| UPC | 650327348509 |
M**D
Great, very comfortable
Im almost 6' tall, long arms, trim to average build 185 lbs. My arms are bigger than legs. XL size for arms and legs slightly large for me, almost perfect over clothes. Certainly workable with velcro straps. I could use a large without clothes underneath. Glad I bought XL for versatility, hot or cold weather use. I cant imagine better fit, comfort or protection in more breathable fabric without rigid plastic...worth the price, always worth the protection. No doubt they do truly "save."
D**E
Love These! Just Right
Love these! These fit just right. I only wish they had matching arm pads but I didn't see any. PROS: - Comfortable fit and snug - Velcro straps help keep them in place CONS: - Back strap sometimes get in the way of flexing the leg... but almost trivial *Updated Review* Just experience couple of major crashes that resulted in a bruised rib, broken pinky, bruised right hand/palm, bruised and badly scraped back and seriously impacted my right knee on something pretty hard. My upper knee is black and blue but nothing broken or swollen. I think these pads did the job and helped protected my knees from possibly a break! *Further Update* Forgot to mention that I bought a size Medium. I'm about 190 lbs, 5'8'', weight lifter build, but the Medium fit perfectly. By the way, still going strong.... with now over a dozen falls, tumbles and impacts. *Event Further Update (2018-07-31)* Man! These pads are tough. 1 yr, 3 mo later and after 3 - 4 dozen falls, tumbles, wipe outs, these are still going strong. WTF?? Tough as demons I guess :) *Yes, Another Update (2019-09-30)* Got bounced around a rock garden, ending my rides for the year (and perhaps 1/2 of next year). Shattered my arm in 3 places, bruised my right hip, strained shoulder ligaments, 1/8th of meet ripped from my lower shin. But guess what? I only got some purple bruising on one knee and these pads are STILL going strong!
B**A
These just saved both my patellas (knee caps) on the mountain!
Snowboarder here. Today, I was clocking 42 mph down a steep blue when a wild Jerry appeared. Had to slam on the brakes with the toeside of my board. Too much speed, too steep. Succeeded in missing the Jerry, but I must have slid 100 yards down the run on my knees and elbows while digging my board into the mountain before I came to a stop. I felt absolutely no pain, and not even much pressure on my knees. Without these pads, I'm completely certain that at least one of my knees would have been torn up good. Particularly since I have a pre-existing knee injury. Comfort? Oh yea. Any knee pad will feel more uncomfortable than no knee pad. But I wore these for 6 hours today without removing and I'm fine. 4/5 rating only because the sizing is weird. Make sure to err on buying a larger size if you are skeptical. I'm 5'11", 165lbs. However, I pretty have solid quads and calves for my weight. I got an XL size and they feel good. The 'sleeve' of these pads fit perfectly, but I find I have to tighten down the elastic straps farther than I'd like. But, great option here. I'm definately very happy to have picked these up. Already battle-tested and approved.
T**N
Lateral Frontal protection + Free Movement
I am using this product for my MuayThai classes; I cannot appreciate the product enough for keeping me safe from knees shoks; they have a lateral frontal protection; you are extremly freein mvoements'I also use them for my downhill biking. I love them; so thankful for such a good engineering product! GREAT JOB SAVED SO MANY PEOPLE
D**H
Excellent fit , Great protection
I am 5’10” average build. I bought an extra large set of knee pads. They fit perfect. Very very comfortable . I had them on for 5 hours and could have worn them on our drive home (3 hours) they are so comfortable. I don’t even need to tighten the Velcro. I bought these over other brands because of the Velcro just in case. I crashed hard at an indoor bike park ( wooden ramps) my first time using them. I landed into the side of the ramp on a sharp edge. These pads held up. No rips or tears. I have no doubt my knee would have been really messed up without this protection. Just for clarification, I’m a 50+ y.o. guy. I’ve ridden bmx and mountain bikes my whole life. Crashes get a little harder to recover from the older I get so I wanted some added protection with comfort. I looked at 3 other brands and kept going back and forth. I finally decided on these. I am completely satisfied
N**L
I would recommend these to anybody looking for a good pair of pads
I have been researching knee pads for weeks upon weeks, watching videos and side by side ratings from multiple mtb forums, I decided I would try these out since I run their helmet and A fan of it. So here is my opinion, Fit is perfect and super comfortable. Some people have said that the sizing isn’t true, just learn how to measure things and you will get the right size, adding a inch to your size doesn’t always help you. Product and packaging are nice quality and they come with a mesh bag which is nice for keeping them together and helping them air out and get that stanky sweat off that has been beholding up all day. I would recommend these to anybody looking for a affordable set that still offer good protection.
D**$
Best knee pads ever (for skating)
I’ve tried like 6-7 different sets/brands of pads for skating and these are perfect (even though they’re made for biking). They’re super flexible and comfy, I barely remember they’re there. They’re also slimmer than most knee pads and yes, I have taken a good amount of falls on smooth and rough concrete, rocks. No problems and barely felt anything tbh. Def buy the size recommended with proper measurements from the brands site! Don’t size up or down. I’m 5’11” 150lb and I wear a medium in knee and elbow. The medium could probably fit someone a bit bigger than me bc there’s still room in the tops of mine. However, there’s elastic that you can get a snug fit with and some gel grips in the tops that grab onto your skin to prevent sliding. 9/10
L**A
Not enough knee padding
I’m 5’ and these are super long on me but I can deal with it. I like the Velcro to tighten the top and bottom. They are super sweaty but that’s expected. The side padding is great. The front knee padding is not good. I’ve used these so can’t return them but am thinking about ways I can enhance the padding in the knees.
K**G
Great protection for your knees
I was using some no name brand for snowboarding but they are nothing comparing to the Demon Hyper X D30 kneepads. They provide a lot better protection and also comfortable to wear all day at the same time. Even in icy condition my knees are protected when I fall. Will purchase again in the future for other products.
J**E
perfect for snowboarding
used in Japan last month during snowboarding. perfect protection. rest assured when kneel down
G**O
Calidad y precio
Muy buenas, cómodas talla muy bien, a muy buen precio
A**R
Calidad - precio
El día de hoy las estrené en la subida a torre 2 (GDL), 3 horitas entre subida y bajada, además de otras 2 horas en la Primavera y la verdad que ni me acordé que las traía, muy cómodas y no se bajan nada, ajustan bien los velcros. Pedí XL, mido 1.76 y peso 85 +- cuerpo "estándar", entonces se me hace que si calzan más pequeñas, porque yo pensaría ser L. En general estoy contento porque usan la misma tecnología que las Fox y te ahorras una feria. Lo que sí, que creo que dan un poco de calor, nunca he usado otras, no puedo comparar, pero bueno, prefiero un poquito más de calor a otra raspada más. Actualizaré después, a ver cómo se siguen comportando y cuando las estrene en una caída jaja.
A**N
5 stars
Love it. Very comfortable
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