Is the Molle strapping vital?
I only ask because if you're trying to avoid attracting attention, you might want to avoid military look-alike gear and military colors.
The mil-tec has a really fab-o red, but it's a little redder than my personal preference goes (it is POW candy-apple red).
If you get a navy, purple or cranberry color, or even something blocked in gray and green, forest-and-olive, tan-and-gray more in triangles and squares and in less of a military pattern, you'll blend in just as many places as those bags, especially in dusk-dawn and night situations, but won't attract attention moving in daylight.

If you have to go with a camo, maybe try to aim for the hunting-type or Kryptek-spartan or -highlander type that don't pop as immediately to military thoughts.

You also might consider a backpacking tube-type instead of a squat block type.

There's Mountain Laurel and Jansport for backpacking tube bags, and if you look under "outdoor" in Jansport you might find something under daypacks that works for you.
I've had a standard Jansport backpack meant for school that's been abused for more than 15 years, day hiking and while I'm working and hauling 20-30 pounds of books and drinks and pointed garden tools and muddy boots.
I've had a Jansport backpacker that I class in the 20-30L "overnighter" category for about a decade. Can't beat 'em, although manufacturing standards have dropped so that might have changed with later generations of packs.

Osprey makes a good line of daypacks and larger volume packs, some 1500 and some 1700 ci versions. I like the talon and kestrel, from other people's packs.

If you want a camo pattern and a die-hard bag, check out kifaru and badlands. They both have daypack sizes.
Badlands makes a few unbeatably comfortable packs and if I didn't always have a list and a half, I'd have their pursuit pack. It's frameless and gets lower reviews than some of their others, but for me it's one of the easiest-carrying bags I've ever had on my back, and I really like the compression capabilities. It doesn't rub my neck or catch my ponytail, doesn't take a contortionist to get into the side pockets or get a water bottle back in their pockets, lets me put tools or a plan tube or whatever else I want in a bedroll strap, and doesn't catch my elbows as I move or hold onto one tree before I slide to the next.
The only downside is the camo (I like the Krytek-highland and its knockoffs, but it does stand out in non-woods and non-field spots). And I need one of the Jansport bags to die before I can justify dropping $100 on another bag.

it depend of the purpose
has MrsPrepwPets said most of preper will avoid military style , camoflage in subway style is all colored
personally i dont live on big city and i dont plan to bug out on center town nor city so i go for the cammo gear all the way , i plan to avoid road and remain stealth
my sword will be visible to everyone who cross my road but my riffle will be hidden just to avoid being sniped from far because i carry weapon
for the bag itself once again i would say it depend on what level of bug out you plan for .. 3 day bag ? 3 week bag ?
i own a eberlestock pack names j107 dragonfly and its really nice, this is my precious one to go hunting, but wouldnt use it has bugout bag for many reason
my best choice of bug out bag usmc ilbe main pack + ilbe day pack + usmc mss sleeping bag modular + sealine drybag 56l
sturdy, totaly modular for 1/3 of my eberlestock pack price
whit these 3 item you start very good
the usmc ilbe recon pack area bit larger if you need more space but much more expensive because of rarity

ilbe pack combo http://www.ebay.ca/itm/Complete-USMC-Gen-II-MARPAT-Camo-ILBE-Main-Pack-with-Assault-Pack-Used-/111379032971?pt=LH_DefaultDomain_0&hash=item19eeb52b8b
mss sleeping bag http://www.ebay.ca/itm/VGC-USMC-US-Military-4-Piece-Modular-Sleeping-Bag-Sleep-System-GORTEX-Bivy-/301326049054?pt=LH_DefaultDomain_0&hash=item46286e9f1e
the sealine dry bag are made to fit perfectly on usmc back pack and it more than a luxury to keep ur gear dry u can also reverse it to inflat http://www.ebay.com/itm/USMC-Dry-Bag-65L-ILBE-Waterproof-SeaLline-Cascade-Canoeing-Boat-9L-Mac-Sack-NEW-/201170635882?pt=LH_DefaultDomain_0&hash=item2ed6b44c6a
this is my recomendation , you cant go wrong whit this

i forgot to say the way you pack stuff into your bag change all to be confortable on long walk
you need to keep stuff heavy on top and have weight on ur waist not shoulders

Thank you for the replys

I am all for the "I want to blend in with everyone" ideology but around where I live MOLLE on a backpack is normal so I would be fitting in.

I do try to stay away from the hiking backpacks. I know they are light weight but previous experiances with them are that they rip too easily for what I would like. 600D nylon is my preferance.

My main pack right now is a Badlands Sacrifice, it is an awsome pack for taking everything. When I go out for practice runs I put 50 lbs or gear in it and go away for a few days, I am really happy with it. What I would like in a bugoutbag is something that can go with me everywhere. It will take more abuse and use.

I do like the Dragonfly and the Just one but it is camo and will attract too much attention. I almost bought one for my main pack but decided not to because of the type of gear I carry with me. I needed more open pockects instead of the many smaller ones. Scabbard was a plus though.

I have also looked at the Arcteryx ILBE USMC MARPAT pack, I really like it as well and has some nice pockets and is quite durable. My only issue with it is that it does say US on it and has the flag on it as well, it stands out in a crowd as being USMC and draws too much attention.

Sleep system cannot be beat.

thanks for the suggestion