Everlane Snap Backpack [https://www.everlane.com/collections/mens-backpacks/products/mens-twill-backpack-reverse-denim-black-leather] , because it's spacious and stylish. I get plenty of compliments on my backpack, I personally think these look better than Hershel's version. Referral Link for Everlane is here (https://www.everlane.com/r/vusm1c), if you do plan on purchasing one. :)

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.

Mulberry Small Clipper Black Scotchgrain With Cognac Trim

• Lasts a lifetime, classic design
• Weather proof
• Big
• Looks great

I know its the Apple recommended brand but I use the Brenthaven Collins Slim Brief.

http://www.brenthaven.com/collins-collection/collins-slim-brief

Gotten so many good comments on it. Water resistant and has a ton of nice storage while not being bulky. Have used it every day for over a year and it has held up perfectly. Looks brand new.

I use this one because it can hold a really large laptop and a bunch of stuff since the roll top allows the bag to be really tall or very compact. I always carry my laptop, lunchbag, markers, sketchbook, sometimes Wacom tablet, giant headphones, and more...

http://www.duluthpack.com/business-school/backpacks-bags/roll-top-scout.html

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

This may sound strange, but I use a kids North Face pack. I'm pretty slender, and I hate bulky backpacks, so I went for it...

It's awesome! Perfect size for a 13" MacBook Air, a water bottle, some pens and notebooks, and smaller nick nacks.

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

Patagonia 29 liter laptop backpack

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.