What's The Name Of This Type Of Backpack?

I've been looking all over the internet for a backpack that I like, and I've been coming across images of backpacks with that square leather patch with 2 holes in the middle. What are these called? Where could I buy them?

I'm not too sure what they're called, but you can find them on GMarket. I saw these for sale from the same seller that I bought my Hustler backpack from. Maybe you can search Hustler backpacks on GMarket and they might come up? Sorry for the lack of information!

yea they are called hustler backpacks

Yeah, Hustler I believe. Omgggggg, I love them. But I never got around to getting one. :/

there are fakes of them all over the place for like $10;; in korea anyways

Thank you everyone for the advice!