How is the waterproof rating of the MH100 kids' cape tested?
Technologies: This item was validated in a shower test using 60 L/sqm/hr of water for 1h. This test reproduces the average conditions of a rain shower in the mountains.
The resistance of a fabric is measured by the height of a water column in mm that can be supported by the fabric (test based on the JIS 1092 standard). 5,000 m in this case.
The higher the water pressure, the more waterproof the fabric.