The Anatomy of Motorcycle Jeans: A Complete Guide to How They're Built

Motorcycle jeans are made to look like everyday denim, but a riding jean is judged on things you can't see at a glance: what sits behind the denim, where the protector pockets are, how the seams are built and how the jean fits when you're seated on the bike. Here's each part, and what to check when you compare jeans from any maker.

The outer denim

The outer fabric is cotton denim, sometimes with a little elastane for stretch. Makers describe denim weight in ounces per square yard: heavier denim feels stiffer and warmer, lighter denim breaks in faster and runs cooler. Weight, weave and wash affect comfort and ageing, but only testing of the finished garment shows how it performs in a slide.

Linings and fibre blends

Some riding jeans add a lining panel behind the denim at the seat, hips and knees; others use a fabric with a stronger fibre blended into the weave. Common fibre names include aramids (Kevlar® is a registered trademark of Arclin; Twaron is another aramid) and UHMWPE fibres such as Dyneema®. A fibre name tells you what a material is, not how the garment performs. If a lining matters to you, ask what it is, where it covers and what documentation backs it.

Protector pockets

Many riding jeans have internal pockets at the knees, and often the hips, for removable impact protectors. Check that the knee pocket lands on your knee when you're seated in your riding position, and which protectors fit it. Protectors are certified separately from the jean under EN 1621-1: in the standard impact test, Level 1 limb protectors must transmit an average force below 35 kN, and Level 2 below 20 kN. A certified protector does not make the jean around it a certified garment. More in our protector insert guide.

Seams and hardware

Seams take heavy stress in a fall, which is why EN 17092 assesses every seam type on a garment. Look for two rows of stitching on load-bearing seams, bar tacks at pocket corners and the fly, and a sturdy zip and top button.

Cut and fit

Riding jeans are cut for the seated position: enough rise at the back that the waistband doesn't drop when you lean forward, enough length that the hem covers your ankle on the pegs, and room through the thigh for your bike's hip angle. A protector only helps if it stays over the joint, so fit matters. See our Size Guide.

Labels and certification

EN 17092 is the European standard series for motorcycle protective garments. Its classes (AAA, AA, A, B and C) are awarded to a finished garment model after testing of its zones, seams, tear strength, ergonomics and protector coverage, not to a fabric. Abrasion is tested on an impact-abrasion ("Darmstadt") machine that drops fabric specimens onto concrete and slides them to a stop; the result is a pass or fail at a set speed, not a number of seconds. A garment certified in Europe carries CE marking and a label naming the standard and its class. There is no US federal standard for motorcycle apparel.

Denimotto riding jeans

Our men's and women's riding jeans have internal pockets at the knees and hips for removable inserts, with one set included with a standard order. They come in 23 fabric colours, in men's waist sizes 28–40 and women's 25–34, or made to your measurements. We don’t publish test reports or protection classes for our garments. See Testing & Certification Information.