Comfortable strap -- The straps is durable and adjustable .There is a nice padded interior area to provide protection
A bunch of inner/side pockets -- there are very useful,You can use it as bookbag, diaper bag, purse bag for work
Plenty of space -- big enough to hold and carry all of your things:1.Good size (fits your laptop, a spiral notebook, 1/3 inch binder and planner with ease,notebooks, lunch, school supplies)2.A padded section laptop compartment (it fits your 13" laptop snugly, probably nothing bigger than 15' can fit comfortably)3.2x water bottle holders