Faulty shoulder straps
I use this bag moderately 1 to 2 times a week. I have an 18" computer that probably weighs 3kg, and with the power supply and peripherals, it probably weighs 4kg/5kg. The protection is good and the inside of the bag is well thought out. But it seems that my model is faulty. The inside of the shoulder straps is already untied, soon to be broken.