The Stratos v2 Techshell Drystar® Jacket a highly versatile, technical urban riding jacket incorporating a 100 per cent waterproof and breathable Drystar® membrane for effective and proven all-weather performance. With the slim profile, highly ventilated Nucleon Flex Plus armor for high levels of comfort impact protection and the ability to upgrade with Alpinestars Nucleon back inserts, plus a detachable fleece hoodie for enhanced comfort and thermal insulation, the Stratos v2 is ideal for daily riding in and around the city.