Velcrometre is a modular bag system that allows you to carry only what you need, when you need it, and how you need to carry it. It consists of a bunch of components of different capacities and functions that have industrial strength velcro on most of their surface. The user fills the components with what they need, and then assembles a bag out of only the components they need.
For the record, I do NOT have stock in velcro.
[picture should finally show up now]