I use this for my Mac Air. When I am traveling, I place the bag inside my ballistic nylon briefcase. In case I drop my briefcase, it shields and cushion the mac air from any damage.I also like to place my mac air, power plug and projector plug inside the zipper pocket, then if I wish to, take this as a separate "mini briefcase" to meetings or to a coffee place. If you need something to protect your Mac Air, transportation on business trips, or for those meetings and trips to get coffee, I highly recommend it. Oh yes, and it washes very well in case of spills.