Shield Backpack. The Shield Backpack combines aerodynamic design with functionality, featuring a sleek, hard-shell exterior that's water-repellent and built to perform. With a 25 liter capacity, it includes an expandable compartment to fit a full-face helmet and a padded laptop pocket for secure, organized storage. High-density thermoformed EVA shell with PU coating for maximum durability. Expandable zippered compartment for full-face helmet storage. Padded laptop pocket (up to 17") with elastic security strap. Internal elastic pocket for small items. Two adjustable straps with side-release buckles for secure storage.