Forclaz Trek 900, Waterproof Backpacking Hat in Carbon Gray, Size 60-62cm/24"

How Decathlon Measures WaterproofingAt Decathlon, we assess both the fabric's technical performance-like its 20, 000 Schmerber waterproof rating-and the full product in real-world conditions. This hat is tested in an environmental chamber simulating heavy rain, ensuring it can withstand 4.7 inches of rainfall over 2 hours (60 liters/hour/m^2). That's serious storm-level protection. | Forclaz Trek 900, Waterproof Backpacking Hat in Carbon Gray, Size 60-62cm/24"