Alpinestars Argon Slim Fit JeansThe slim fit Argon Technical Riding Pants have been optimized for urban riding and feature class-leading Nucleon Plus knee protectors and Bio-FlexPlus hip protectors with stretch CORDURA denim for the optimal blend of protection and comfort. There is also aramidic reinforcement on the knees and hips for enhanced protection against abrasion and cuts, with triple stitching on the outer seam for strength and durability.Features: Tapered, slim fit design Stretch CORDURA denim fabric delivers the optimal blend of abrasion resistance and comfort Nucleon Flex Plus CE Level 1 knee armor and Bio-Flex Plus hip protectors for effective impact protection Outer seam is triple stitched for strength Reinforced side seams with triple stitching for durability Inner fabric gussets in aramidic fiber reinforce the denim fabric at critical points such as the knee and hips Crotch and leg incorporate a new ergonomic design for enhanced flexibility while riding Additional hidden pocket on the back for practicality Reflective tape on turn ups CE approved to pr-EN17092 as a Class AA garment A CE Level AA rating, governed by the EN 17092-3:2020 standard, signifies that a garment is engineered to offer a high level of abrasion resistant protection suitable for a wide range of riding conditions, including touring and daily commuting. To achieve this classification, the materials in the most vulnerable areas of the garment, known as Zone 1 (typically shoulders, elbows, hips, and knees), undergo rigorous testing.The key test for abrasion resistance is performed on a specialized machine called the Darmstadt tester. In this test, a sample of the garment's material is subjected to a simulated slide on a concrete surface. For a garment to earn the AA rating, the material in Zone 1 must withstand a rotational speed of approximately 412.6 revolutions per minute (rpm) on the Darmstadt machine. This is designed to replicate a slide at a road speed of approximately 43mph (70 km/h). The material passes the test if it does not develop a hole larger than 5mm in any direction after the abrasion. This exacting standard ensures that the garment offers substantial protection against road rash in the event of a fall at typical road speeds. It is important to note that this abrasion test is just one component of the comprehensive testing required for certification. To earn the final rating, the garment must also pass rigorous standards for tear resistance, seam strength, the impact protection performance of the included armor and additional factors.