The Alpinestars Tech Aero Backpack is a motorcycle rucksack designed to be aerodynamic for use on the bike to enhance rider comfort. Made from highly durable Advanced poly-fabric (600 denier on main shell; 1200 denier on base) with a PU coated outer construction for additional strength and weight-saving, as well as improved durability and water resistance. The aerodynamic sport silhouette has been engineered for high cargo capacity with a low profile for aerodynamic performance and this is fully expandable from 16 litres up to 26. The Alpinestars Tech Aero Backpack can accommodate laptop computers, tablets and smartphone devices. Padding on the back panel and straps gives enhanced comfort along with air-mesh for air channelling and improved comfort while riding. Back padding also helps distribute weight evenly across the back area which is important for comfort on longer rides. The innovative new S‘ design shoulder strap system is designed to anatomically follow the natural contours of rider‘s torso and incorporates customisable chest connection system which features adjustable locking closures for a secure and highly personalised fit along with an adjustable waist belt connector. This also comes with a grab handle for use off the bike. The internal sleeve allows integration of the Alpinestars‘ Bionic Back Protector to ramp up protective capabilities and this also has a pocket, loophole and conduit to enable integration of the Alpinestars hydro pack (as accessory upgrade), meaning this pack is ideal for long distances. A built-in helmet carrier and fully enveloping rain cover are also handy additions along with extensive reflective detailing for added visibility and, of course, Alpinestars logos.