Advanced multi-material main shell with 420 denier poly fabric; 420 denier ripstop nylon reinforcements at the bottom for strength and weight savings as well as improved durability, abrasion resistance and water resistance. Up to 25 litres capacity and designed for high load capacity at low profile for aerodynamic performance. Convenient external zipped compartments in the main compartment for safe storage. Side pockets with waterproof zips. Inside the compartment there is a pocket with organiser for electronic devices, which can accommodate cables, laptops, tablets and smartphones. The bag is lined with fleece to prevent scratches on laptops and tablets. The integrated helmet mount allows you to conveniently store all types of open and closed helmets. Removable waterproof rain cover that can be easily stored in the front compartment. Anatomically shaped back panel with foam padding inserts and advanced air mesh for excellent airflow and improved comfort while driving. The back padding also helps distribute the weight evenly across the back area, which is important for comfort on longer rides. Ergonomic shoulder straps with perforated foam padding and mesh inserts for optimised airflow, adjustable and removable chest strap and the Alpinestars quick-release system for quick and secure adjustment. Removable waist belt with quick release system for quick and secure adjustment, which also prevents the system belt from fluttering. Handle integrated into the shoulder system for easy, ergonomic work. Reflective details on the front and shoulder straps.