This European standard concerns protective clothing against rain, wind and cold at temperatures higher than -5℃. This standard specifies the requirements and test methods applied to the materials and seams of the protective clothing against the effects of foul weather (for example rain or snow), fog and humidity. The requirements of the EN343 include:

X: Water resistance
Y: Moisture, vapour and perspiration or “breathability” of the garment
Strength of garment components-tensile, tear, seam strength and shrinkage.