Yes, it goes all the way down the pocket. But it shouldn’t produce a bulge. Honestly it doesn’t look like the bulge will go away with usage - when I try to flatten it with my hand it just pops back up. Moreover the sharp angle of the bulge (I marked it red now) feels like a hard pimple (if it makes sense), like the pocket was sewn wrong.Does the middle strap go down all the way in the back? Is that what is causing the bulge? I imagine one you start using the bag and the back pocket that the bulge will go away so I’m not sure it is a defect.
And that’s how it should look as far as I understand - flat: