The laptop backpack; computer carry case features. 
 
        - Computing as portable as ever.

The carrier case-   so will you be using it for...bicycle, leisurely stroll, on the bus?  Keep manufacturer designs in mind for just this.  For a pack ability to stabilize your computer while offering cushioning that runs through the whole pack as a system, from shoulder straps to containment.  There should be an  integrated sense of transport.. 

Compartments - A proper fit is a must.  So you may want to have the dimensions of your unit prior to buying.  And how is the pack divided?  Many packs out there come with added compartments for accessories like for a portable printer or extra battery supply. 

Materials - Choosing ballistic may afford durable quality but be prepared to spend more.   Remember that  weight too could be a factor for carrying over prolonged distances.    

Access Closures for those on the go usually translates to a need for closing devices that stay where intended.  Features like flaps should guard out unwanted conditions and keep you notebook weatherproof.  

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