RadTech Spire Torq
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Using the Spire Torq for a full sized 17 inch widescreen laptop you can easily place some extra padding in the bottom to cushion the laptop in your backpack. The pack only has a single layer of nylon without padding in the two large compartments at the bottom so extra cushioning is needed in my opinion.
The rear compartment has padding on the back that is removable and the divider between the two large compartments has padding that is sewn into the pack. To secure your laptop well in the backpack you have padding on the two sides and you should use the front large compartment for a laptop and the rear most compartment for books or other things.

If you have a smaller laptop such as a 15 or 14 inch or even smaller you can use the laptop sleeve that fits these sizes well. The sleeve offers extra protection and security for your computer as well as the needed padding on the bottom of the backpack.
The only thing I have found that is lacking in the Spire Torq is the lack of padding in the bottom of the two compartments, other than this the pack is excellent. My son has been using the Spire Torq for his book bag and laptop backpack while going to college at a large university.
He has all the customary classes for a college student going for a degree in computers so takes his computer to class everyday as well as the usual large books. His backpack weighs about 20 to 30 pounds when traveling to and from school especially when you have his laptop, books, snacks and a couple of water bottles on the sides.
The Torq does not show any signs of stress on seams or the shoulder straps where they connect to the pack so I am sure the pack will last a good long time. The pack seems to be wearing very well without any problems at all after a month of regular daily college student use/abuse.

I highly recommend the Spire Torq from RadTech for a heavy duty laptop backpack with all the features you could want in a daily use pack. The Spire Torq is available in Black or Black and Burnt orange from RadTech for about $130, the sleeve costs an extra $30.
