I've been asked many times, if I know what brand House's beloved blue backpack is, that he's been carrying around since the beginning of season 2, if I remember correctly off the top of my head...
I've never been able to definitely tell what that little logo said or find that exact pack anywhere online....
BUT... Eddie Grisco
), who is a prop master on House, tweeted in response to a question about the bag: "house 's backpack is a yak pak out of Brooklyn ny"
I haven't checked that the backpack has always been the exact same, and I haven't confirmed that it's a YakPak, either. I'm just going to take Eddie's word for it, because he's the person who'd know best. :-)
If anyone stumbles on the info which model it is (note the rounded zipper), I'll happily include it in this post, giving credit, of course.