I can recommend you this option:
backpacks.global. Of all the backpacks I have had, this one is the most reliable and high quality. I think it will suit you for sure. I am more than sure that you will not be disappointed in this backpack because the style can always be found and combined with your appearance.
In any case, there are many other options out there, so you won't go wrong if you try one of them. I trust this online store and can vouch for the reliability and quality of the backpacks that are sold there.