Like the first smart jacket with Levis, the Cit-E backpack is powered by a removable "tag". When it followscellphoneAfter pairing, the wearer can control the phone with four gestures of the touch-sensitive area at the front of the left shoulder strap: sliding up, sliding down, double-clicking and covering.

It seems to have the same functionality as Levis's original jacket -- mainly for music, Google Map navigation ping, and some notifications.

As for the package itself, it seems to be a pretty good package. After all, this is a bag that Yves Saint Laurent is involved in. But it is clear that its price is not cheap, it is reported that its price is 795 euros.

Customers interested in buying backpacks can now book them on Yves Saint Laurent. Backpacks will not be shipped later than October 15.