Scientists have invented a fabric which you don't need to wash. It repels dirt, and smells. I like doing my laundry, but it's a marvelous idea for camping trips.  I like the scientific diagrams so I drew them.

1. Nano particles are attached to clothing fibres using microwaves.
2. Chemicals which repel water, oil and kill bacteria, but can not be directly applied to the fabric, are bound to the nano particles.