The Upixel patented silicone Backpack is gridded with 21 x 28 pixel points (minus a few for the arch of the zip closure), giving you 588 pixel positions to express your ideas.
The backpack is made from high quality nylon and the padded straps can be easily adjusted to fit.
Every Pixel Backpack comes with 240 free colour Pixels and a few ideas to get you going.