Kevlar Jeans

How to pick the right Kevlar jean

Pick the cut for the riding you actually do. Then check the protection class. Not the other way around.

Shark Straight Leg ($199 RRP). The workhorse. Aramid-fibre knit lining through the backside, hips, outer thigh and knees, armour pockets for knee and hip inserts (sold separately). Straight leg fits over most boot collars. Heavy-weight super stretch denim, sizes 26 to 50. Best for: commuters, older riders, anyone who wears jeans all day. Honest flag: the lining is "protective stretch fibres" rather than DuPont Kevlar branded yarn, and the product page doesn't publish a cert class. AAA construction, ask us for the EN 17092 paperwork before you buy if you need it on file.

Shark Skinny Leg ($199 RRP). Same fibre lining zones as the Straight, slim street silhouette. Sizes 28 to 50. Trade-off: the tapered leg can be tight over ankle boots. If you ride in Redbacks or Blundstones, try the Straight first. Same cert caveat as the Straight, ask us for the paperwork.

Shark MOM Relaxed Fit ($199 RRP). High-waisted, relaxed-cut jean built for women who spend more time sitting up than crouched. Full lining through backside, hips, outer thigh and knees. Sizes 4 to 26. Claim is "30% more coverage than most brands". Trade-off: relaxed fit can bunch inside waterproof overpants.

Shark Ladies Skinny Leg ($199 RRP). Same fibre protection as the mens Skinny, cut to women's sizing (4 to 20). Knee armour inserts included in box. Trade-off: no hip armour supplied, pockets sized for inserts rather than everyday storage.

Shark Tracer ($349.95 RRP, also listed as the Roamer on clearance, same base garment, different colourway). DuPont Kevlar branded lining at the bum, hips and knees. Single-layer construction, AAA-grade abrasion build, Level 2 hip and knee armour pockets standard. Super slim fit, sizes 30 to 42. Best for: lightweight commuters who want the fastest-processing protection in a slim package. Honest flag: AAA construction, ask us for the EN 17092 Class AAA paperwork if you need it on file. Trade-off: not suitable for muscular or large thighs, this is a genuine size-gate, not marketing copy.

Shark AA Single Layer Mens ($269.95 RRP). The certified step up. Tested AA construction, single-layer, cotton/nylon/polyester/elastane engineered blend with no separate liner to trap heat. YKK side zipper for armour access, machine washable cold, sizes 28 to 50. Best for: commuters, tourers, anyone whose employer or insurer asks for AA-rated gear. Full paperwork available on request. Trade-off: the fabric blend prioritises stretch and wash-ability, so the Tracer's DuPont Kevlar lining outperforms at the sliding phase, this jean wins on documentation, the Tracer wins on raw fibre spec.

Shark Ladies AA Single Layer ($269.95 RRP). Same tested AA construction, high-waist contoured cut, sizes 6 to 20. Extra coverage through hips and waist versus a standard women's cut. YKK concealed zipper, machine washable. Full paperwork available on request. Trade-off: the contoured fit means sizing runs specific, use the size chart, not your usual jean size.

For riders who want stocked alternatives with their own paperwork on the product page: Oxford Super Stretch ($199 RRP) is CE AA certified (EN 17092-3:2020) with Level 2 knee and Level 1 hip armour in the box. Super stretch monolayer Armourlite fabric, slim fit, short and regular inseams. Merlin Mason WP ($299.95 RRP, Class A) adds a Reissa waterproof membrane and DuPont Kevlar lining, the only waterproof option in this collection. Merlin Blake ($249.95 RRP, Class A) runs 100% DuPont Kevlar Fibre Twill lining to impact areas with pre-fitted adjustable CE knee armour. Merlin Dunford D3O ($399.95 RRP, Class AA) brings D3O Ghost armour at hips and knees on a single-layer Cordura denim, the top-certified option in the collection. Macna Individi ($329.95 RRP) uses DuPont Kevlar full-woven construction with Safe Tech CE knee armour. Macna Stone Pro ($369.95 RRP, Class AA) runs fully woven Cordura Aramid throughout with Level 1 knee and hip armour, slim fit, the stocked alternative that runs the Dunford close on specs for $30 less.

Aramid vs Kevlar, and what EN 17092 Class A, AA and AAA actually mean

People mix these up constantly. Here is what the words actually mean.

Aramid is the generic term for para-aramid synthetic fibre. It was developed by DuPont chemist Stephanie Kwolek in 1965. The tensile strength is high enough that a woven aramid layer between denim and skin survives abrasion where the denim fails first. That's the entire point. Kevlar is DuPont's brand name for their para-aramid yarn. When a product says "DuPont Kevlar lining" rather than "aramid lining", it means DuPont's specific fibre under DuPont's quality-controlled spec. Other aramid yarns (Twaron, Teijin, own-brand knitted protective fibres) also work, they just don't carry the DuPont documentation.

EN 17092 is the European standard for protective motorcycle clothing. Three tiers matter for jeans:

• Class A, baseline protection. Impact zones covered. Lowest abrasion resistance threshold in the standard. Entry-level protective jeans with a valid cert sit here.
• Class AA, mid-range. Higher abrasion resistance, mandatory CE Level 1 or Level 2 armour capability at knees and hips. The Oxford Super Stretch, Merlin Dunford D3O, Macna Stone Pro and Shark AA Single Layer live here.
• Class AAA, maximum abrasion resistance for a jean garment. The Shark Tracer is built to AAA-grade construction (paperwork available on request). Race suits reach this tier on denim-style garments.

Armour is certified separately under EN 1621-1. CE Level 1 cuts transmitted impact force to under 18kN. CE Level 2 cuts it to under 9kN. Level 2 at the knee is the difference between walking away and not walking away on the same tarmac. If your jeans don't come with CE Level 2 knee armour in the box, buy it separately before your first ride. It runs $30 to $60 a pair and fits the standard pockets.

Single-layer vs twin-layer deserves its own line. Traditional protective jeans have a denim outer and a separate aramid lining sewn inside. They're heavier and warmer, and the lining can migrate if it's not bonded well. Single-layer jeans (the Oxford Armourlite, Merlin Dunford, Macna Stone Pro, Shark AA Single Layer) weave the protective fibre into the base fabric. One layer, no separate liner to bunch. They breathe better. The trade-off: the single-layer fabric is engineered, not just denim plus lining, so they cost more to produce.

Our family's standard. Our family started Shark Leathers after Matthew crashed in 2007, at 19, and was left a quadriplegic. Nearly twenty years on, every Kevlar jean we stock gets judged the same way. Would we put it on one of our own? Full story on our about page.

Kevlar jean comparison

FAQs

Single-layer or twin-layer Kevlar jeans, which protects better?

Neither is universally better. Twin-layer jeans (denim outer, separate aramid lining sewn inside) tend to have thicker overall coverage in the lined zones. Single-layer jeans (like the Oxford Armourlite, Merlin Dunford, Macna Stone Pro, Shark AA Single Layer) weave protective fibre into the base fabric itself. Single-layer is lighter, breathes better, and less likely to bunch at the hips. Twin-layer is usually cheaper because the construction is simpler. If the lining on a twin-layer isn't bonded or stitched tightly, it can migrate toward the centre seam over time and stop covering the hip zone. Both can reach Class AA. Check the cert, not the layer count.

Do I need CE Level 2 knee armour in my motorcycle jeans?

Yes, if you ride anything other than slow suburban streets. CE Level 2 knee armour (EN 1621-1) cuts transmitted impact force to under 9kN. CE Level 1 cuts it to under 18kN. At 80km/h, a knee-first impact onto bitumen generates several times the force Level 1 can handle. The Oxford Super Stretch ships with Level 2 knee armour in the box. Most Shark jeans have pockets and leave the armour as a separate purchase, running $30 to $60. Don't skip it. Hip armour at Level 1 is the minimum, Level 2 hip exists but is less common in jeans. Check the product specs on each listing.

How do I wash protective motorcycle jeans?

Cold machine wash, typically under 30 degrees. Remove armour inserts first. Most aramid and Cordura blends tolerate cold wash, but heat degrades aramid fibre over time, so don't tumble dry on high heat and don't dry-clean. Line dry or low heat tumble if you must. The Shark AA Single Layer and Ladies AA are rated machine washable cold. Merlin and Oxford jeans follow the same guidance. If in doubt, check the care label rather than guessing, a wash that wrecks the lining doesn't announce itself until you're sliding.

How do Kevlar jeans size relative to regular denim?

Usually smaller in the thighs and seat, because the aramid lining or single-layer fabric has less give than standard denim stretch. Shark's Straight and Skinny mens range runs true to waist measurement (sizes 26 to 50), but the Tracer Super Slim is a genuine slim fit, the product page says so plainly: not suitable for muscular thighs. For women's fits, the Shark MOM and Ladies Skinny run in AU dress sizing (4 to 26 and 4 to 20 respectively), not waist inches. Oxford runs short and regular inseam options. Pull out the tape measure before you order, these jeans don't stretch like your weekend Levi's.

What is the difference between Class A and Class AA for motorcycle jeans?

EN 17092 Class A requires that impact zones are covered and that the garment meets a baseline abrasion resistance time. Class AA requires higher abrasion resistance and mandatory CE Level 1 or Level 2 armour readiness at knees and hips. In practice, a Class AA jean on bitumen at 60km/h stays intact significantly longer before the fabric fails. The difference matters most in a long, sliding crash rather than a short, sharp tip-over. Class A is fine for low-speed commuting. If you do highway kilometres regularly, AA is the credible minimum. The Oxford Super Stretch, Merlin Dunford D3O, Macna Stone Pro and Shark AA Single Layer are Class AA. Most other Shark jeans are built to Class A construction.

Are motorcycle jeans legal on Australian roads and safe enough for regular riding?

Australian law requires a motorcycle helmet. Protective clothing is not legally mandated yet, though Queensland and other states are actively reviewing gear requirements. What the law doesn't require, the road enforces anyway. Motorcycle jeans are abrasion-rated protective gear, not fashion items with a seam in the right place. A pair of unlined denim jeans fails in under a second of sliding contact at 50km/h. A Class AA jean with CE Level 2 knee armour gives you several seconds more, plus shock absorption at the knee. For urban commuting and short highway runs they're a legitimate choice over cargo pants. For track days or sustained highway touring, step up to a textile or leather pant with EN 17092 Class AAA certification.