Gyeon Q² LeatherShield is a durable silica-based coating for leather upholstery that lays down an invisible hydrophobic barrier that repels liquids and soiling. Able to withstand mechanical wear for upwards of nine months at a time, and virtually impervious to liquids and grime, it pays for itself in terms of the benefits it offers, particularly on lighter coloured leathers. Just think: (i) no more drink spillage disasters when children are in your car (just a simple mopping up job instead), and; (ii) no more stubborn dye transfer problems to contend with (just a mild leather cleaner will do the trick). We rate Gyeon Q² LeatherShield very highly, as it really does leave leather surfaces looking like the day they rolled out the factory (i.e. it's 100% invisible) and the level of protection it affords is second to none. It's worth every penny!