Multi-fabric shell construction with mesh panels on the chest, back and sleeves for improved cooling performance, Accordion inserts on shoulder blades and elbow for high levels of movement, Waist adjustment for an improved riding fit, Volume adjusters on sleeve to reduce material bunching, Two zippered hand pockets for real-world practicality, Waist connection zipper allows attachment to Alpinestars riding pants, Thermoformed white reflective PU logo on the chest plus 3D injected PU logo on the upper back, Low profile collar construction with microfiber comfort edging plus 3D textured fabric on inner collar lining for enhanced rider comfort, Pre-curved sleeve construction reduces riding fatigue, Reflective details to make the rider more visible to other road users, especially when riding at night, Waterproof inner front pockets for peace-of-mind storage, Chest and back compartments are designed to accommodate the Alpinestars Nucleon chest and Nucleon back inserts, available as an accessory upgrade, sold separately, Multiple snap button system to integrate the Alpinestars Nucleon back protector, Removable windbreaker lining for versatility, Bio Armor shoulder and elbow protectors