I got it mostly because it's almost all natural materials - cotton. There are a couple of plastic zippers and some plastic buckles, but that's all.
It's capacious, but since it's just cloth, it collapses into a small space if it's not full.
It's simply made, that's nice because if some little thing breaks you might be able to fix it easily with a sewing machine. No liner, two pockets.  And it's washable.
I love it, and love the camouflage pattern too.
One disadvantage, it's completely un-waterproof.