Fit matters across the stated size range
A sleeve that accepts several screen sizes may leave different amounts of room around each computer. Ask for its measurements and any fastening detail instead of assuming a close fit for every device. Consider whether you use a separate sleeve and whether it will pass through the opening without catching on other contents.
Clarify two advertised conveniences
For the USB feature, find the internal connection and check the required power source and supplied cable. For anti-theft wording, ask which part of the design it describes. These are independent questions: neither tells you how the main compartment is organized or whether the bag has a pocket arrangement that suits your daily accessories.
Compare it with your actual load
Put this model beside another backpack in the comparison tool. Missing figures stay marked as unknown, so you can see which measurements need checking before you buy.
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