Users spray LiquidOff on fabric or shoes and allow it to dry. Its lifespan for nonwashable items like shoes or furniture is between three and five years. For clothing, it will last for 20 or more wash cycles before wearing off. The Kickstarter is currently topping $17,000 toward a $25,000 goal with 31 days to go. A 375ml bottle goes for a $55 pledge. That's enough to treat seven T-shirts or up to 28 pairs of shoes.