Our verdict The best (THIN) Backpack - High Quality, Lightweight, stylish - great for everyday use - and fits on the front carrier frame.

This is the anti-bulky bag.
For those who carry a bulky bag and never need all of that capacity, this bag should be examined!
This bag is incredible.
The zipper, seams, and stitches are all high-quality (better than other more expensive bags I have).
The shoulder straps have the retention seam sewn into the adjusting strap to keep the shoulder strap from falling off while it's on your back. The inseam has a soft fabric to protect your devices. This is not a requirement, because other bags don't have it.
This is an example of a bag that takes another step.

Who needs this bag?
If you don't take much extra stuff with you to work or class every day, this is for you. It's designed to be and stay THIN!
If you have a long trek (hike) to work or class each day, then this lightweight bag is for you.
If you like to have more (extra or "just-in-case") stuff than you need and love carrying a heavy bag, then you may want to reexamine your priorities and try this bag.

This is my everyday work bag. My 15" company laptop fits it perfectly, (My 15" MacbookPro fits it well, also) My cell, my work cell, my iPad, battery packs, and files.
Everyone in our office has remarked on how light the bag is empty and when loaded.