Inside the Gill Lab

Beyond Tested

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May 11, 2026 1:01pm EDT

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Inside the Gill Lab, every fabric, seam and trim is subjected to a rigorous cycle of testing – each one pushed beyond the standards the industry requires.

It's a process most sailors never see. But it's the reason you can head out on the water and trust your kit without a second thought. From waterproofness, to spray rating to abrasion and salt corrosion – here's a closer look at the tests behind the gear.

Beyond Tested.

Inside the Gill Lab

Hydrostatic Head

We measure waterproofing precisely – many international standards allow up to three water droplets to form before a fabric fails the test. We fail it at the first. Our baseline starts at 10,000mm, with our OS1 Ocean fabric holding at over 30,000mm.

Martindale Testing

On a boat, gear takes constant punishment. We test for it using industrial grit paper rather than standard fabric-on-fabric testing – simulating years of real-world wear in hours. All garments face a minimum of 10,000 rubs.

Spray Rating

Even the most waterproof fabric can let you down if its surface finish fails. Our spray testing ensures water beads cleanly off every waterproof fabric in our range.

Salt Corrosion

Saltwater works into zips, eyelets and metal trims over time – corroding from the inside out. Our corrosion testing submerges every exterior metal trim in saltwater for a minimum of 12 hours, exposing any weakness before it reaches the water.

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Douglas Gill International LTD, Manor House Road Long Eaton, Nottinghamshire NG10 1LR

Inside the Gill Lab