OT: The Perfect Day Pack

[RFC]

I am looking for the perfect day pack. I already have an expedition pack and a midsize pack (good for a couple of days). But you can never have too much gear, although my sons have already "liberated" both of those. Part of my parental plan.

Now I'm looking for a day pack. The primary uses will be for hiking -- from a short local 3 hour hike here in the Valley carrying water, camera, phone, to a full day mountain hike with extra water, hydration gear, food, camera, extra clothes and a little survival gear, plus, maybe a Glock.

I also want it to be suitable to use for travel, which means big enough for a standard lab top (9" wide). I don't need a lab top sleeve, because I have a zip foam case.

I don't want anything too big and somewhat narrow is probably better.

Finally, I want a very durable material.

Your thoughts?

Thanks

RFC