Testing

6 min

How we test a jacket in a rain room

Four hours under 50 mm of rain an hour, a fan at force six and a mannequin that walks. This is how every KESTRUN shell earns its label.

Every shell we make spends four hours in a rain room in Porto before we sign it off. The room drops 50 mm of rain an hour, a fan pushes the equivalent of a force-six wind, and a mannequin swings its arms like it is walking to a train.

What we look for

We weigh the jacket before and after. A dry shell comes out within 20 grams of where it went in. We check the seams with a torch from the inside, then the pockets, then the hood peak, which is where most jackets fail first.

If a sample lets water in anywhere, the pattern goes back to the cutting table. The KS-04 took five rounds.

Our promise

Everything we make is tested in the rain room, and repaired free for five years.

In this story

What we were wearing.

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Sixty days on the North Sea coast

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