Leather motorcycle pants SPIDI RR PRO 2 SHORT Black/White The SPIDI RR PRO 2 shorts are certified to the latest safety standard prEN 17092-2:2017 and include removable Warrior Lite protectors certified to the En 1621-1:2012 standard. To ensure a perfect fit, the RR PRO 2 Short Pants have a tightening system with micrometric stretch for lumbar adjustment, flexible panels at the top of the knees and cuffs that are designed to fit snugly and comfortably in boots. As you would expect from any high quality motorcycle pant, the RR PRO 2 Short features adjustable and removable knee sliders and Spidi's patented micrometric slider control system. For safety, there is a zipper to attach the trousers to the jacket, and the main chassis is made of wear-resistant cowhide with a thickness of 1.1mm to 1.3mm. Flex Tenax panels are used in high mobility areas, the pants have a fixed lining and are rated 50% waterproof.