Alpinestars St-2 Air Jacket The St-2 Air Jacket offers an ideal blend of ventilation and safety for summer touring, designed with a focus on breathability and protection. Its modern design coupled with an adjustable fit promises both style and a comfortable ride, making it a standout choice for riders looking to make a statement while staying cool on their journeys. Construction: A lightweight, low profile ADV jacket for hot weather riding jacket featuring full mesh back panel and AA rating Stretch Softshell base construction Reinforced with high tear resistance Ripstop material at the shoulders and elbows Lengthened lower back Ventilation: Large, exposed tech mesh panels on the chest, back and underarms Strategically placed laser perforations Protection & Safety: CE Level 1 Nucleon Flex Plus Protectors at the shoulder and elbow armor Pockets for split chest armor and back protector (sold separately) Certified as a CE Class AA garment Tech-Air ready Comfort: Cuff and forearm adjustments Soft comfort collar edging Pockets: Chest pocket Two lateral pockets Back pocket Other Features: Jacket-to-pant full connection zipper