Was there a specific aesthetic you're hoping to achieve? If you're looking purely for function, I've had great success traveling with my Arc'teryx Miura pack and their duffles. Side access zips on both bags makes getting items at the bottom of the bag easy. Durable and easy to care for; Arc bags easily fit in overhead storage.
Thanks for the response. The bags look nice but I don't really have any techwear so I don't think they'd work with my wardrobe. I wear mainly Geller stuff so I was thinking about a black or grey ballistic nylon or leather bag. Twill might be ok too but I would prefer nylon or leather. I was also looking into what dimensions for the bag I should get as I will be buying it online.
There's a grey leather bag I'm looking into but not sure if that is a no go. I never see anyone with grey leather really