This layout involves two parts, an outer sleeve and an insert designed to hold the coffee packets. The idea is to emphasize the portability of the product: "Tuck this in your bag, and you're good to go."
The overall concept will be a marriage of two seemingly contradictory ideas:
The package itself will suggest quick, convenient, and portable.
The design on the package will suggest "stop, enjoy life, celebrate your day, etc."
A one part layout, again emphasizing convenience.