The Reinforced Tech Pro jeans are constructed from heavy weight Cordura Denim which is reinforced with DuPont Kevlar for enhanced abrasion resistance and tear strength. All Zone 1 areas are further reinforced with a terry knit DuPont Kevlar lining which is unique to the Tech Pro Jeans and is key to achieving the AAA CE rating. Additionally, Level 2 CE armour is fitted to the hip and knee and the knee armour is 3-position adjustable for long-ride comfort on the bike! The Tech Pro jeans have been cut to ride in, even on the aggressive riding position of sports bikes. With this in mind, we've added stretch areas over the knee and in the seat for comfort and enhanced ergonomics. If you're after a serious riding jean that achieves the highest level of certification the Tech Pro Jean is the obvious choice.