Barrier CT Pro™
Our waterproof, breathable fabric technology. Developed by Cortazu, independently tested, and built into jackets for everyday rain, mountain trails and snow.
An independent laboratory kept raising the water pressure on our fabric. At 61,200 mm the test rig hit its maximum, and the fabric was still dry.
We removed the licence fee. We kept the standard.
Explore the full results and test methodsFind your jacket
Same tested fabric in every jacket. Choose a shell for layering, warmth built in, a longer winter coat, or a jacket made for skiing.
Choose it if you want to adjust warmth with layers.
Colour · Forest Green · Russet Red · Black · Dark Blue · Dark Green · Mid Grey · Olive
Choose it if you want insulation for cold days and everyday use.
Colour · Dark Grey · Mud Green · Black · Dark Blue · Dark Green · Olive
Choose it if you want extra coverage in the city.
Colour · Navy · Dark Grey · Mud Green
Choose it if you need a jacket for the slopes.
Colour · Black · Dark Blue · Dark Green · Forest Green · Glacier Blue · Russet Red · Sandstone
Field tested
Then we gave it to people who'd notice if it failed. Ned Helyar wore it on six-hour hikes in heavy rain and wind, 4–8°C, with a full pack the whole way.
Ned Helyar, hiking expert · Five days, Scottish Highlands
From the fit to the finishing, we refine our designs around the things you do in the outdoors. Discover the details.
An adjustable hood you can rely on when the wind picks up.
Open the underarm zips for extra airflow during more high-intensity adventures or warmer days.
80g Sorona® insulation adds warmth inside the Delta. Open the underarm vents when you need extra airflow.
Independently tested fabric. Considered details. Choose the jacket for the weather you’re heading into.
Our most protective waterproof fabric: Barrier CT Pro™. Waterproof, breathable fabric developed to our specifications and tested by an independent laboratory.
Which jacket to choose, how to find your size, and how you know it keeps you dry.
Barrier CT Pro™ is Cortazu’s waterproof, breathable fabric technology. We develop it to our own specifications and have its performance independently tested. Field testing helps us refine how our jackets fit, feel, and perform outside.
Choose Alpine if you want a non-insulated shell and prefer adjusting your warmth with layers. Choose Delta INS for built-in warmth in a shorter jacket. Choose Parka for insulation with a longer cut and extra coverage. Choose Nunatak for an insulated ski jacket with features designed for the slopes.
Waterproof fabric protects against rain and wet snow; insulation provides warmth. Alpine is non-insulated, so you choose the layers underneath. Delta INS, Parka and Nunatak have insulation built in. Adjust your layers to the weather, your activity and how easily you feel cold.
We publish the laboratory results and test methods on our Barrier CT Pro™ technology page. You can explore the measurements behind waterproofness, breathability and abrasion resistance, alongside our field-testing stories.
We offer free size exchanges. Check the product’s size guide before ordering, or ask our team for help. If the fit isn’t right, we’ll help you choose a replacement size and arrange your exchange.
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