No straps. Actually, that pretty much means that I wouldn't like that backpack at all. Too sporty.
I am not really a backpack person, but there are occasions when it makes more sense than a giant purse. I generally opt for a big purse, and a compact reusable tote bag for most days. These usually fit in my basket.
I am looking for a "pannier" that looks like a tote bag, but is rack mounted, that I can use for shopping trips. The Ortlieb style panniers do not match my outfit. Very practical, buy would not want to carry those off bike.
I like my straps a little loos, but honestly there wasn't much in it. It is a medium sized bag with a padded laptop sleeve. It wasn't sitting low, even with the looser strap all though it is likely 1/2 too wide to be a perfect fit on my back. I had to scoot it over a little for comfort.
I had a laptop, shoes, water bottle and a few sundries. I would have been shocked if it even weighed more than 8 pounds.