Are Kevlar Jeans STAB PROOF?

I once wondered how stab-resistant motorcycle Kevlar jeans are, now I know the answer and so will you! As I say I know this really is a pointless test but I really just wanted to know!
Do not recreate anything you see in this video!
This has been created for educational reasons in a safe environment, by a trained professional.
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[@101steel4]

That's my ride to London put on hold 😁

[@jackiedonaldson6377]

This reminds me of when i was at a training meeting at work and the subject was about how resisting our work trousers were if you came up against sharps. For some strange reason our instructor brought in sharps to pass around the class, of which someone decided to try it out and stabbed themselves in the thigh not understanding that this would inflict injury.The trousers were only designed for light contact with sharps.

[@cj548]

I've seen a few people stab themselves in the legs over the years.

[@heathenstrengthtraining3059]

🤣😂🤣😂🤣 That made me chuckle. The stupidity of some people. haha

[@MrMrhughesy]

When I had my crash, the nurses at A&E tried to cut my kevlar jeans off with the toughcuts (you know, the scissors that's supposed to cut through anything) It failed miserably to cut through my jeans (my jeans had kevalr all the way to the ankle) had to have a very dodgy and awkward removal of the leg, the usual way. Good job I wasn't feeling any pain. Ever since I've pondered the same question as you.

[@spicy110]

I can say for the other video I did on patreon with the jeans I had to cut them and yes it was not easy and I got to thinking. Damn these must be a nightmare in serious crashes but defo worth it!

[@garethhall4941]

So it won't stop your butt from being penatrated by a guy with a big chopper!?!?

[@stuartbrown8257]

Nicely done! we can assume the outcome for other common motorcycling penetration hazards such as: ninja stars, Pigeons and Nissan Micras

[@Bavenbushcraft]

Whenever I come onto KZbin to watch a particular video, I instantly get distracted by your latest upload and have to watch it first! Honestly thought this was a rant about lorry drivers throwing bottles of piss out of their windows initially 😂 (I think you need to make that video!) Good test though and I can confirm, having worn a stab vest on a daily basis in my previous job (domestic cat wrangler) that they do indeed contain many, many layers of Kevlar in an interwoven sandwich of stabless joy!

[@MotoGoato]

In fairness even the British Standard EN388 6.4 test for puncture resistance (for CE marked PPE) doesn't use a sharpened point penetrator ... they use a rounded point ... and the highest level awarded for that is L4 which has to resist up to 150 newtons (about 15 kilos) of force put on the rounded point 😉 .... most slash proof kevlar clothing for security use etc is only L2 which has puncture resistance up to 60 newtons (about 6 kilos)

[@alexanderson5749]

Already knew that the non kevlar part wasn't stab proof because I have a hole in mine and I don't remember even cutting that part of it but was interested in the kevlar section

[@MattJonesGR9]

I tested an RAF flak vest against a +12 ft lbs .22 air rifle. It stopped the pellet

[@paulkewley3727]

Kevlar is only stab proof because of the way its weaved together, a stab vest would not survive being dragged along tarmac. Kevlar jeans are woven to survive friction more than penetration. Still a great video.

[@another3997]

A kevlar stab vest is as at least as abrasion resistant as any kevlar jeans, almost certainly more so. They are constructed from many layers of kevlar, and there's no way you will get through them all just by sliding along tarmac after a crash. Stab resistant Kevlar is tightly woven, but that doesn't mean it's not abrasion resistant.

[@koltinn]

It has more slicing resistance than stabbing

[@bikersquest]

You should've tested the knee armour 😁 my plastic outer Dainese armour feels fairly stab proof (it's probably not)

[@shriker5969]

Kevlar is really bad as stopping slow pointy/sharp stuff. Normally shivs/knives just push the fibres aside. That is why stab proof wests have IIRC aluminium-oxide scales in them. There is some new tech threnching the kevlar with titanium-oxid IIRC to get a non-newtonian-fluid effect, which should stop slow and pointy objects.

[@another3997]

Dupont created a version of their Kevlar fabric designed specifically to stop knives and shanks, originally known as "Kevlar Correctional". It isn't covered in scales, and I've never seen a stab vestcthat uses them. AL oxide is a very hard ceramic used on hard armour plates to help pulverise high velocity projectiles, such as rifle rounds. It's also expensive. Knife resistant fabric needs to be both strong and tightly woven. However, "spike" resistance usually requires adding a different material rather than more layers of Kevlar. Otherwise the armour gets very bulky. A layer of modern, welded steel chainmail or hard plastic plates, often made from Polycarbonate will do the job.

[@shardlake]

Even body armour is rated as resistant to slash and penetration it will not claim anything more.

[@robinwells8879]

You need the equivalent of chain mail or a great thickness of woven kevlar. Chainsaw trousers have a couple of centimetres of the stuff and it tends to clog up the teeth of a chainsaw thus slowing the cut and perhaps even stalling the engine. I am slightly disturbed by the things that are running through your head! I am sensing inner rage!

[@another3997]

There are certainly other materials that can be as effective as Kevlar, if not more so.Technically, you would use the type of Kevlar fabric specifically designed to resist thrusts from blades and sharp objects., which is substantially different to Kevlar used to stop bullets. In tests, a standard NIJ 3A or UK HG2 bullet resistant vest can be penetrated by sharp blades relatively easily. Stab resistant Kevlar is less effective at stopping bullets. Unlike a blade, bullets are not actually sharp, they don't easily cut and slide between fibres, and they are usually designed to somewhat deform upon impact.

[@alan4391]

You still could get sharp objects hit you on the road but still good to know that there not stab proof thow thanks for the information spicey

[@chrisdavidson911]

Cutlery wagons need to be labeled a lot better, they should have one of those hazmat signs or something

[@adiohead]

Leather was someone's skin. Why would it stop a knife? 🤔

[@spicy110]

Leather was used as armor as it is tanned it isn't just skin. Also as stated at the start of this video it's a dumb idea.

[@goldilocks913]

Stab proof jeans? You heading to London? 😂

[@mattlad6935]

Pausing just after 2 minutes...... Having watched Lock Picking Lawyer's channel and see him cut slash resistant / slash proof kevlar to pieces, I'd say no.

[@mattlad6935]

Just as I thought.......

[@bytesandbikes]

iirc, stab proof vests are kevlar composite, like carbon fibre

[@another3997]

I believe kevlar stab vests usually just contain a tightly woven kevlar fabric. Carbon fibre is light, but is best embedded in resin to make a light and very stiff composite. Weight for weight, it's not as good at resisting penetration as Kevlar.

[@Sethrain]

Having looked after foster children and seen many bottles of piss, I can confirm that that looks like a bottle of piss.

[@sebastianomandala7936]

Tbh I think it's more about cuts and not stubbing

[@Bavenbushcraft]

Listened all the way through, liked the smack out of the fuck button and now off to watch the better sidewinder video (without any temptation to detour to comment on the original about long hair risks 🤣)

[@Meifesto]

Perfect ending ;)

[@17473039]

We can test them against .22LR, .222rem, .308win and 12ga birdshot and slug if you're happy to travel up to south wales 😉

[@spicy110]

I have tested them with a air rifle lol That is the other video on patreon.

[@17473039]

@@spicy110 yeah I saw you made that video. Air rifle is ~12ftlb, .22lr is ~150ftlb, the .222 is ~1000ftlb and the 12ga slug is about 2000ftlb... If the air rifle didn't make it through

[@spicy110]

Oh i have zero doubt the .22lr would wiz though it haha

[@darkelemental]

so im guessing these were sold via TheRiderTeam that just disappeared halfway through peoples orders?

[@spicy110]

They could not sell them due to changes in EU laws.

[@shannonheathcliffmul]

should have tried slashes aswell :'(

[@spicy110]

I still can and it seems I may need to as a few have asked the same.

[@ExMAB4]

Stab proof ??????? You want your outer layer to resist penetration by being drageed along a lumpy stony road. Piercing the material with a knife is pointless. Do the same to my modern Hood AAA jeans and you will get the same result as you did here. Fun but pointless. Love what you do with the channel. The kevlar used in ballistic protection isn't the paper thin stuff used in motorcycle jeans, it's a thick carboard like substance.

[@Jonesykins]

You're more or less on the dot. The reason the jeans didn't work is because they are usually just a one or two layer of Kevlar, they're there to protect your arse and legs when you're sliding. There is nowhere for the impact of the knife to be absorbed. Whereas the Kevlar in a vest is upwards of 30 layers of 200GSM (0.24mm) Kevlar. Which allows the impact of objects to be absorbed and distributed, bullets, knives, etc.

[@EnlightenedSavage]

Kevlars strength is in the pulling direction. That's what makes it bulletproof. When a bullet hits it that causes the impact of spread across the material. Knives don't allow the material to be pulled. It cuts it before it can demonstrate up any resistance.

[@SupermotoZach]

🤣

[@CrazyOldDave]

Trigger warning for a guy who lives near between Coventry and London would be nice x'D

[@kenyafadel6142]

🇮🇳♥️♥️♥️ Too beautiful

[@SiGoodchild1]

Knife protection by leather? You know how leather can be removed from a cow and then worked into clothing… …yeah.

[@spicy110]

Yes, I have done some leather work, as clearly stated at the start of the video it's a silly idea BUT I wanted to know. The leather was just as add on as they were headed for the bin.

[@IIARROWS]

TL;DW: no. It's not at all. There are a lot of tests about kevlar not being stab proof.

[@IIARROWS]

Ok, after watching the intro: stab proof vests are not kevlar, at least not just that.

[@danghawes]

Stab vests are as spicy says at the end of the video made up of multiple layers of Kevlar woven in different directions. The single layer used in motorcycle clothing is there for it's abrasion resistance when you're sliding down the road.

[@wolfe1970]

You do realize just owning a lock knife in the UK is illegal and you could face jail time....

[@spicy110]

That is very wrong Sir, see my EDC knife collection video for more details on UK knife law. kzbin.info/www/bejne/h6ipo4Bql9Oce8U