Process perfected to make any item "100% waterproof"

Guess which trainer is waterproofed at a molecular level?
Guess which trainer is waterproofed at a molecular level?

UK company Plasma Product Innovations (P2i) has demonstrated a chemical process that it says can make absolutely any material 100 per cent waterproof.

Demonstrating what it calls an ion-masking process, which basically meant coating a trainer in some kind of solution, P2i wowed onlookers by submerging a treated shoe into a tub of water and removing it completely dry.