What Is Hydrostatic Head? | Rab Lab

What is hydrostatic head?

You might have seen waterproof jackets classified as 10K, 20K or even 30K – but what does this actually mean? 

play-icon Fabric clamped into a silver machine that measures the waterproofness of fabric.

What is hydrostatic head?

Find out more about hydrostatic head, water pressure, and how we measure waterproofness of our fabrics.