Will the laptop fall out of a Cache?

[BPritchard]

Brain Cell or other bag

For your purposes, the Brain Cell is a consideration.

Or carry the cache in a large Cafe Bag, the Swift, or a Utility tote.

[lefty]

I'm considering Cache for a new 11.6" Macbook Air. I understand that Cache is meant to be stuffed in another bag. But my use also requires walking around from building to building with the computer. I just want to carry the computer in a simple sleeve to protect from minor bumps and bruises.

My concern is that if I accidentally mishandle the Cache and it goes "mouth-side" down then the computer will fall out. If you have used a horizontal Cache for other light notebook computers, can you please advise me this? Will the computer fall out or is the tucked in flap strong enough to keep the computer in?

Thanks