Padded compartment for safe transport of laptop and accessories Compartment for Smartphone Compartments for pens Small parts compartments, open and closable Compartment for ring binder Outside pocket on rear Trolley holder Separate carrying handles Padded shoulder strap for comfortable transport Stable metal eyelets for shoulder strap stable metal eyelets for shoulder strap Detachable bag for tools with reinforced zipper for tying to the laptop bag large, double front pocket with top and front zipper 18 large inside pocket for tools 26 stretch straps for tools with different diameters Separate carrying handles Non-slip protective surfaces on the floor Tear and abrasion-proof fabric Without tools