Size Guide A full mesh constructed jacket for summer riding, Flow 2 is produced for Ducati by Spidi. This jacket comes with ForceTech armor in the shoulders and elbows and is pocketed for a Warrior back protector (sold separately). A trousers to jacket loop is fitted in the back of the jacket and will attach to any standard pant loop (belt loop) to prevent the jacket from riding up in the back. Includes Windout membrane windproof and water resistant detachable liner. Lightweight and extreme breathability make this jacket perfect for hot summer riding.Outside 210 g/m2 polyester coated with polyurethane on the inside (water repellent 3,000 mm; breathability 1,200 g/m2/24 hours) 3D net in 260 g/m2 polyester, 2.5 mm thickness for total breathability Inside Detachable, breathable and windbreaker Wind out membrane The mesh lining in polyester (90 g/m2) is run resistant, Velcro™ resistant and dispels sweat effectively Comfort 100% ventilated Adjustable waist fastening Plus 2 outer pockets, 1 inside pocket Lining with Windout membrane with dovetail stitching to prevent water infiltration Jacket-to-trousers connection loop Protectors Force-Tech removable guards EN 1621.1 certified Fits Warrior back guard (sold separately, item 981027003 and 981129523)