Hydrostatic Head (mm) Waterproof ratings explained
0–1,500mm = Water resistant, suitable for very light rain
1,500–5000mm = Waterproof, suitable for light to average rain
5,000mm-10,000mm = Very waterproof, suitable for moderate rain
10,000 - 15,000mm = Highly waterproof, suitable for heavy rain
20,000mm = Extremely waterproof, suitable for heavy rain and snow

With a Hydrostatic Head rating of 20,000mm and taped seams to keep moisture out you can count on our products to protect you in the wet and wild conditions.