HOW TO MEASURE WATERPROOFING?

Waterproofing test determines the pressure, measured in millimetres, at which the material begins to let water in. According to ISO 811, a garment that can withstand the pressure of a water column of 1'300 mm of water can already be considered waterproof.


During an outdoor activity, the water pressure can easily reach more than 10'000 mm, it is thus recommended to choose products which are more than 10'000 mm waterproof.