Anatomically optimized & incorporating class-leading protective features into a multi-material chassis, the SP-X Jacket has extensive stretch panels for a close, sport riding fit while offering high levels of upper body mobility regardless of the riding position. Perforation zones & zippered air intakes on the torso provide internal airflow while a removable thermal liner means this certified jacket can be worn in cooler climates. Construction Main chassis multi-material, multi-panel construction featuring 1.3 mm high grade bovine leather & highly abrasion stretch fabric Extensive stretch fabric panels on sleeves & chest further improve fit & upper body movement D-ring & hook & loop grip waist adjustment for personalized riding fit & safe closure Two front zippered hand pockets plus inner waterproof wallet pocket Zippered air intake vents are positioned for optimized airflow adjustable to a rider’s personal tastes Strategically positioned localized perforations for excellent ventilation & internal airflow Low profile collar construction with microfiber comfort edging plus 3D textured fabric inner collar lining for comfort Pre-curved sleeve construction reduces fatigue when riding & improves comfort Protection Chest pad & back compartments with PE padding (Alpinestars Nucleon chest & back inserts available as accessory upgrade) Multiple snap button system to integrate the Level 2 certified Alpinestars Nucleon back protector Internal certified Bio-Armor shoulder & elbow protectors Newly developed shoulder protection features over-molded advanced TPU guard layered under the outer fabric for optimized levels of protection & comfort This garment is certified 89/686/EEC Features Removable thermal liner (80g on body, 60 on sleeves) means jacket can be worn in cooler climates Soft, microfiber comfort edge on collar & cuffs Internal waist connection zipper allows attachment to Alpinestars riding pants Reflective detailing improves visibility of rider