A 2 compartment 156 techair protectionreg rolling backpack cant decide whether you need a backpack or a trolley then look no further the 3710 combines both cleverly designed the 3710 can be treated as a fantastic casual styled trolley or with a couple of simple adjustments can be transformed into a backpack with its patented techair protection technology to keep your laptop safe and secure it also has an additional compartment for all your other essentials and accessories even mor