The fabric is coated with 2 layers of polyurethane which make the insert bag water repellent but not waterproof. Light rainfall, will bead off of the insert bag. A heavy downpour, however will soak the bag. ZÜCA offers rain covers for the ZÜCA Sport, All-Terrain and Disc Golf models.
When using soap or detergent on a fabric treated with a water repellent coating, there is risk of losing some repellency. Sunlight also diminishes the coating material. The repellent on our bags is very resistant to soap, most household solvents and sunlight.