05/07/2020
When it comes to motorcycling, safety isn't just a suggestion; it's a fundamental necessity. Every rider understands the inherent risks of the open road, and equipping oneself with the best possible protection is paramount. Amidst the myriad of materials designed for rider safety, one name stands out prominently for its exceptional protective qualities: DuPont™ Kevlar®. For decades, this innovative material has been integrated into various forms of motorcycle apparel, providing an unseen yet incredibly robust layer of defence against the unforgiving tarmac.

The journey of Kevlar® from scientific discovery to a staple in motorcycle safety gear is a testament to its remarkable properties. It's more than just a fabric; it's a meticulously engineered aramid fibre that offers an unparalleled combination of strength, heat resistance, and flexibility. Understanding what Kevlar® is, how it functions, and why it's so vital for motorcyclists can empower riders to make informed choices about their gear, ultimately enhancing their safety and enjoyment on every journey.
- What Exactly is DuPont™ Kevlar®?
- Why is Kevlar® Indispensable for Motorcyclists?
- Kevlar® in Various Motorcycle Gear Applications
- Understanding Kevlar® Blends and Weaves
- Kevlar® vs. Other Protective Materials: A Comparison
- Crucial Considerations When Buying Kevlar® Gear
- Care and Maintenance of Kevlar® Gear
- Frequently Asked Questions About Kevlar® in Motorcycle Gear
- Conclusion
What Exactly is DuPont™ Kevlar®?
At its core, Kevlar® is a synthetic fibre developed in 1965 by DuPont. It belongs to a class of materials known as aramid fibres, characterised by their high strength and heat resistance. The magic of Kevlar® lies in its molecular structure; it’s composed of long, parallel-aligned polymer chains that are highly organised and tightly bonded. This unique arrangement gives Kevlar® its extraordinary tensile strength, which is five times stronger than steel on an equal weight basis.
Initially developed for use in tyres, Kevlar® quickly found applications in a vast array of industries demanding extreme durability and protection, from aerospace and ballistic body armour to ropes, cables, and, crucially, protective clothing. Its ability to withstand extreme temperatures, resist cuts, and offer significant abrasion resistance makes it an ideal candidate for environments where impact and friction are major concerns, precisely like a motorcycle accident.
Why is Kevlar® Indispensable for Motorcyclists?
The specific properties of Kevlar® translate directly into critical safety benefits for motorcyclists. When a rider comes off their bike, the primary dangers are impact and sliding along the road surface. Kevlar® excels in mitigating the latter:
- Exceptional Abrasion Resistance: This is arguably the most significant benefit for motorcyclists. In a slide, the friction generated between the rider's body and the road can quickly wear through conventional fabrics, leading to severe skin abrasions, often referred to as 'road rash'. Kevlar®'s high tensile strength allows it to withstand significant frictional forces, delaying or preventing the fabric from tearing through, thus protecting the skin underneath.
- Superior Tear Resistance: Beyond just abrasion, Kevlar® also boasts impressive tear strength. This means that even if a part of the garment is snagged or put under extreme stress during an impact or slide, it's far less likely to rip open, keeping the protective layers intact and preventing exposure of the skin.
- Heat Resistance: The friction from a slide generates immense heat. Kevlar®'s inherent heat resistance means it won't melt or degrade rapidly under these conditions, maintaining its structural integrity longer than many synthetic alternatives. This also offers a degree of protection against friction burns.
- Lightweight and Flexible: Despite its incredible strength, Kevlar® is surprisingly lightweight and can be woven into flexible fabrics. This is crucial for motorcycle gear, as bulky or rigid materials can hinder movement, reduce comfort, and impair a rider's ability to control their machine. The flexibility of Kevlar® allows it to be incorporated into gear without compromising rider agility.
- Durability: Gear reinforced with Kevlar® tends to have a longer lifespan, standing up better to the rigours of daily riding and occasional incidents. This translates to better value for money in the long run.
Kevlar® in Various Motorcycle Gear Applications
DuPont™ Kevlar® is incredibly versatile and can be integrated into almost any type of motorcycle gear, offering targeted protection where it's needed most.
Motorcycle Jackets and Trousers
Perhaps the most common application, Kevlar® is extensively used in textile motorcycle jackets and trousers. It's often found as a lining in critical impact zones such as the shoulders, elbows, back, hips, and knees. Some premium garments even feature full Kevlar® linings. When combined with CE-approved impact armour, Kevlar® provides a comprehensive protective shell.
Motorcycle Jeans
The rise of casual riding gear has seen motorcycle jeans become incredibly popular. These often look like regular denim jeans but hide a crucial layer of protection. Most motorcycle jeans incorporate Kevlar® panels in areas prone to impact and abrasion, such as the seat, hips, and knees. There's a distinction between single-layer jeans (where the Kevlar® fibre is woven directly into the denim) and lined jeans (where a separate Kevlar® fabric layer is stitched inside). Single-layer options tend to be more comfortable and breathable, while lined versions often offer more extensive coverage.
Motorcycle Gloves
Hands are often the first point of contact in a fall. Kevlar® is frequently used in motorcycle gloves, particularly in the palm area, knuckles, and finger seams, to enhance cut resistance and abrasion protection. This helps prevent tears and provides an extra layer of defence against road debris and friction during a slide.
Motorcycle Base Layers and Under-suits
While less common than outer gear, some specialised base layers and under-suits designed for track riding or extreme conditions may incorporate Kevlar® or other aramid fibres. These provide an additional, close-fitting layer of abrasion resistance beneath the main suit, acting as a secondary defence if the outer layer is compromised.
Understanding Kevlar® Blends and Weaves
It's important to note that Kevlar® is rarely used as a standalone, pure fabric in motorcycle gear. It's typically blended or woven with other materials like cotton, denim, polyester, or Cordura. This blending allows manufacturers to achieve a balance between protection, comfort, breathability, and aesthetics.

For instance, in motorcycle jeans, Kevlar® might be woven into the denim itself, creating a single-layer fabric, or it might be used as a separate, internal lining. The percentage of Kevlar® content and the type of weave significantly impact the garment's protective capabilities. A higher concentration and a denser, more complex weave generally offer better protection. Always look for clear labelling regarding the Kevlar® content and its placement within the garment.
Kevlar® vs. Other Protective Materials: A Comparison
While Kevlar® is exceptional, it's one of several materials used for motorcycle protection. Here's a comparative look:
| Feature | Kevlar® (Lined/Blended) | Leather | Cordura® (Nylon) | Dyneema® / UHMWPE |
|---|---|---|---|---|
| Abrasion Resistance | Excellent | Excellent | Good | Outstanding |
| Cut/Tear Resistance | Excellent | Good | Good | Excellent |
| Impact Absorption | Minimal (relies on armour) | Minimal (relies on armour) | Minimal (relies on armour) | Minimal (relies on armour) |
| Heat Resistance | High | Moderate (can degrade) | Low (melts) | Low (melts at lower temp) |
| Water Resistance | Low (depends on outer fabric) | Low (needs treatment) | Good (often coated) | Low (often coated) |
| Breathability | Varies (depends on weave/lining) | Varies | Good | Good |
| Weight | Moderate | Heavy | Moderate | Light |
| Flexibility | Good | Moderate (breaks in) | Good | Excellent |
| Cost | Moderate - High | High | Moderate | High - Very High |
As seen, each material has its strengths. Kevlar® remains a top contender for its balance of high abrasion resistance, tear resistance, and heat resistance without excessive bulk.
Crucial Considerations When Buying Kevlar® Gear
Choosing the right gear is vital. Here's what to look for when shopping for Kevlar®-reinforced motorcycle apparel:
- CE Ratings: Always prioritise gear that carries a CE rating according to EN 17092 (for protective garments) or EN 1621-1/2 (for impact protectors). This certification indicates that the garment has been tested to meet specific safety standards for abrasion, tear, seam strength, and impact protection. A higher class (e.g., AAA, AA, A) signifies better protection.
- Kevlar® Placement: Check where the Kevlar® is located. Full linings offer maximum coverage, but even strategic placement in high-impact zones is far better than none.
- Kevlar® Content and Weave: While not always explicitly stated as a percentage, look for descriptions that detail the quality and quantity of Kevlar® used. A denser weave generally means better protection.
- Fit and Comfort: Protective gear must fit snugly but comfortably. Loose-fitting gear can shift during a slide, reducing its effectiveness. Ensure it allows for full range of motion.
- Ventilation: Especially important in warmer climates, consider how the garment manages airflow. Some Kevlar® weaves can be less breathable than others, so look for integrated mesh panels or ventilation zips.
Care and Maintenance of Kevlar® Gear
To ensure your Kevlar® gear continues to offer optimal protection, proper care is essential:
- Follow Manufacturer's Instructions: Always adhere to the washing and drying instructions on the garment's label.
- Remove Armour: Before washing, remove all CE-approved impact protectors.
- Gentle Wash: Most Kevlar® garments can be machine washed on a gentle cycle with cold water and a mild detergent. Avoid harsh chemicals or bleach.
- Air Dry: Tumble drying can degrade the fibres over time. Air dry your gear away from direct sunlight or heat sources.
- Storage: Store your gear in a cool, dry place, away from direct sunlight, which can weaken fibres over extended periods.
Frequently Asked Questions About Kevlar® in Motorcycle Gear
Is Kevlar® bulletproof?
While Kevlar® is used in ballistic vests, it's not inherently 'bulletproof' on its own in the way many people imagine. Its effectiveness in body armour comes from multiple layers of woven Kevlar® fabric that disperse the energy of a projectile. The single or few layers found in motorcycle gear are designed for abrasion and tear resistance, not ballistic protection.
Does Kevlar® expire or degrade over time?
Kevlar® itself is highly stable, but like any textile, its properties can degrade over prolonged exposure to UV light, harsh chemicals, or repeated extreme stress. With proper care, Kevlar® in motorcycle gear will retain its protective qualities for many years. However, if your gear has been involved in a significant crash, it should be replaced, as the fibres may have been compromised.
Can I wash my Kevlar® motorcycle jeans?
Yes, most Kevlar® motorcycle jeans can be washed. Always check the specific care label on your garment, but generally, they can be machine washed on a gentle cycle with cold water after removing any armour.
Is all 'aramid fibre' gear the same as Kevlar®?
No. Kevlar® is a brand name for a specific type of aramid fibre manufactured by DuPont. While other manufacturers produce similar aramid fibres (e.g., Twaron, Nomex), Kevlar® is the original and most recognised. The performance can vary between different aramid fibres, so looking for the DuPont™ Kevlar® branding often indicates a tested and reliable product.
How does Kevlar® feel to wear? Is it comfortable?
Modern Kevlar®-reinforced gear is designed with comfort in mind. The material itself is lightweight and flexible. When woven into linings or blended with other fabrics, it doesn't significantly add bulk or stiffness. Many riders find Kevlar® jeans or lined jackets to be very comfortable for everyday riding, offering a good balance of protection and wearability.
What's the difference between single-layer and lined Kevlar® motorcycle jeans?
Single-layer Kevlar® jeans have the protective aramid fibres woven directly into the denim fabric, creating one cohesive layer. This generally makes them lighter, more breathable, and feel more like regular jeans. Lined Kevlar® jeans have a separate internal layer of Kevlar® fabric stitched into the critical impact zones (hips, knees, seat), often under a standard denim outer shell. Lined versions can sometimes offer more extensive coverage but might feel slightly bulkier and less breathable.
Conclusion
DuPont™ Kevlar® has undeniably revolutionised motorcycle safety wear. Its unique blend of strength, abrasion resistance, and heat resistance provides riders with a crucial layer of protection that can make a significant difference in the event of an accident. While no gear can guarantee absolute immunity, investing in high-quality apparel featuring genuine Kevlar® reinforcement, especially with appropriate CE ratings, is a smart and responsible choice for any motorcyclist. It offers peace of mind, allowing you to focus on the joy of the ride, knowing you're well-equipped for whatever the road may bring.
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