From the FAQ on KickStarter: The canopy is made from breathable material with a hydrophobic coating so the water beads and rolls off the canopy without being a

From the FAQ on KickStarter: The canopy is made from breathable material with a hydrophobic coating so the water beads and rolls off the canopy without being absorbed. The KAZbrella is no more likely to get mould than a conventional umbrella. Mould will only occur if you leave dirt or mud on your KAZbrella.