The Speedmaster Dyneema motorcycle riding jeans from Joe Rocket Canada are woven with a single layer Dyneema AA certified stretch denim frame that offers extraordinary abrasion and tear resistance. Dyneema fiber is a form of ultra high molecular weight polyethylene (UHMWPE) which has been molecularly engineered to make it the worlds strongest fiber. And when combined with traditional materials, Dyneema fiber makes apparel lighter and stronger without compromising on strength, durability or comfort. 30% lighter than nylon and polyester. 45% lighter than aramid. Dyneema Fiber is 15x stronger than steel (weight per weight ratio). UV and water resistant. Abrasion and tear resistant. Every pair of jeans is full equipped with removable Vault Web C.E. approved knee protectors with convenient easy to use exterior side access to knee armour pockets. Single layer Dyneema stretch denim - classic fit - mid rise, sits slightly below the waist - 15 inch cuff opening