Free delivery on orders over €50

Free delivery on orders over €50

Free delivery on orders over €50

What Is Hydrostatic Head? | Rab Lab

Waterproof Jackets Waterproof Pants

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.

Close-up of a waterproof Rab jacket with water droplets, showing a black strap and part of a backpack.
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How to choose a waterproof jacket.

Explore our waterproof jackets and pants.

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Women's Firewall Alpine Waterproof Jacket

Women's Firewall Alpine Waterproof Jacket

€330.00
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Men's Downpour Waterproof Jacket

Men's Downpour Waterproof Jacket

€140.00
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Women's Downpour Waterproof Jacket

Women's Downpour Waterproof Jacket

€140.00
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Men's Firewall Alpine Waterproof Jacket

Men's Firewall Alpine Waterproof Jacket

€330.00
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Women's Firewall Mountain Waterproof Pants

Women's Firewall Mountain Waterproof Pants

€200.00
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Men's Downpour Mountain Waterproof Pants

Men's Downpour Mountain Waterproof Pants

€140.00
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Women's Firewall Waterproof Jacket

Women's Firewall Waterproof Jacket

€200.00
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Men's Firewall Waterproof Jacket

Men's Firewall Waterproof Jacket

€200.00
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Women's Cinder Phantom Waterproof Jacket

Women's Cinder Phantom Waterproof Jacket

€240.00
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Men's Cinder Phantom Waterproof Jacket

Men's Cinder Phantom Waterproof Jacket

€240.00
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