Features Innovative Acerbis X-Flex technology: fully elasticized material. Foam padding in knees area. Laser perforation in key areas for perfect ventilation. Can take any type of knee guard thanks to stretch mesh in the calf area. Double waist adjustments with Velcro. Closure with hook & button. Weight 650 g Material Inner: reinforcement in Stretch Aramid, Armortex & innovative AX Suede fabric inside pants. Outer: high-density 600D Polyester, fully elasticized. 500D Cordura inserts in the area in contact with the seat.