Plenty of room indeed, but one can not really take advantage. Indeed, at the slightest touch - even bag full, not stuffed to bursting, just filled - the slide zippers jump. The first jumped from the first days, the second after 15 days. I found myself with a bag not to close, and had to use the large scotch in order to bring my computer with me! Too bad the product is well otherwise, and cheap, but lacking in a strategic part of a backpack makes it, in my opinion unusable. I therefore recommend purchase.
I specify if the note is only for the product, not for the Amazon customer service, excellent as usual (produced reimbursed quickly and without history).