GoRuck Radio Ruck (retired, but the essentially the same as the GR0)

http://www.goruck.com/gr0-black-/p/GEAR-000065

Mission Workshop Bag http://missionworkshop.com/products/bags/backpacks/rucksack/sanction.php

• Comfortable for daily use
• Waterproof laptop area
• Perfect carry on bag for air-travel. I've loaded it up with 1 day's worth of clothing and all my tech gear no problem
• Looks awesome

Cote et Ciel Isar, in gray melange. Medium.

http://www.coteetciel.com/en-SE/isar-rucksack-grey-melange

• Lovely materials in and out. Pretty much waterproof, and does not get dirty.
• Can't really be pickpocketed from, great in tight public places.
• Flexible when packing, many well designed/placed compartments.
• Sweet looks.

The Goruck GR1

Spacious, comfortable, and indestructible.

Timbuk2. $10, Goodwill

Im very happy with my Timbuk2 'Q Laptop Backpack'

http://www.timbuk2.com/q-laptop-backpack/396.html?dwvar_396_size=7&dwvar_396_color=1255#/dwvar_396-3-1255_size=7&dwvar_396-3-1255_color=2001

You can find some older submission here https://news.layervault.com/stories/21633-show-your-bagbackpack

I use this elegant ocean blue bag. Definitely one of the most compact bags I've had when I'm not using it.

http://i.imgur.com/poaNoqR.jpg

Ugmonk Canvas Messenger Bag, because my boss bought it for me.

Got a black Filson computer bag with my employee discount when I interned with them because I could not afford the bag otherwise. It's real sturdy and has a lifetime warranty. There is a breaking in process much like wearing raw denim, but all of my old co-worker's bags broke in rather nicely. My only gripe is the beefy zipper scratching up against my Macbook Pro when packing and unpacking.

I've used the same Haglöf Corker for a few years now. A quite simple design but having the openings on the side makes it really easy to access the whole bag. I keep my computer in a sleeve to be on the safe side as it doesn't have a separate computer compartment.

http://www.haglofs.com/kr/en/kr/en/Backpacks-and-Bags/CORKER-MEDIUM/p/339005.2EN

Kasperi Backpack http://kasperi.net/backpacks/backpack/

It's stylish, fits my 15" laptop and it is comfortable. Nuff said.

https://www.goincase.com/shop/backpacks/icon-compact-pack/black/

Great storage space, very waterproof (I have been in semi-tsunami's here in Belgium and this thing held all the water outside) and has some nice little pockets to store things like notebooks, pens or chargers.

My normal out-and-about bag is a Tom Bihn Ristretto for 13" Macbook with their "Absolute" shoulder strap

Just large enough for the stuff I carry everywhere. Fits under airline seats. Built in padded slot for the laptop. Excellent quality (I've been abusing mine for a year now and it looks like new) and the strap is comfy even when I load it to the max. Well worth the money.

For longer trips I have a cheap-arse no-brand rucksack that's just smaller than the max-carry-on size for planes. Clothes & longer-term travel stuff + the Ristretto go in the large bag. Take the Ristretto out on the plane so I've got the important stuff with me.

Ada Blackjack No. 2 in Olive:

http://www.adablackjackgoods.com/collections/backpack/products/no-2-backpack-olive

Venice Flatsquare Bag

Awesome material, incredibly spacious and yet not bulky. I've lost count of the amount of compliments I've received on this bag.

• Great over night bag
• Water proof, specifically engineered material by Venque.
• Multiple device liner for laptops/tablets in main pouch.

I current use Patagonia Chacabuco 32l in grey - http://www.sunandski.com/Patagonia_Chacabuco_32L_Daypack_p/9316062261020.htm

Also like this one from Tumi - http://www.tumi.com/na/p/knox-backpack-022681ATH2?subcat=true

For walking, I use a old West German backpack with some after-market straps I got for 30 bucks at the local surplus store. It's got a cool vintage look and it's hard to beat the price. Similar to this one: https://www.varusteleka.com/pictures/29348d.jpg

For biking and hikes I use one of these; super comfy, lots of space, even has straps that secure a laptop: http://www.gr8gear.com/Condor-3-Day-Assault-Pack-Black.html#.VPosF4F4ptk

A nice little black leather bag (named ‘Bronco 10’) from Spikes & Sparrow [http://spikesandsparrow.com]. (*Which very nicely fits my MacBook Air, and some other stuff, AND has an extra outside pocket which perfectly fits my Kindle.)

I use the incase City Compact. At the time I was looking for a compact bag that would carry all my design tools (tablet, ipad, Macbook Pro, Sketchbook Etc..). NOw im looking into getting the incase Icon because i need a bit more room for my tools now. great backpacks I would definitely recommend them.