Hydrophobicity does not mean absolute waterproofing. When the water pressure reaches a certain level, water molecules can penetrate textiles, so they can be washed normally like ordinary clothes.
Is the fabric breathable:
Although the fabric is hydrophobic, it still maintains the style of the original fabric. The breathability is good. The hydrophobic does not affect the breathability. It wicks away sweat quickly in summer and has good breathability.