The laptop bag that you see above is fashioned out of one of a Pretoria Portland Cement (PPC) bag by Wren Design.

Now, if you have ever handled a cement bag, you will know that they are pretty durable as long as you don’t get them wet or split them with something sharp, but Wren Design has taken extra steps to ensure that your precious gadgetry is kept safe and dry.

The making process is quite long: first the unused paper bag is opened and the various paper layers are separated. Then the top and third layers of paper are fused and bonded with black cotton to make the paper strong and the bag EXTREMELY DURABLE. Once this has been done the material can be treated as a fabric and the pattern drawn, cut and the bag stitched.

The outside surfaces of the bag are Scotch Guarded to be water resistant. With this treatment the bag has been successfully tested in the rain and snow.

Price: $82 [Fashionably Geek]