GORE-TEX

The secret of GORE-TEX fabrics lies within its revolutionary bi-component membrane.The expanded PTFE portion of the membrane contains over 9 billion microscopic pores per square inch. These pores are approximately 20,000 times smaller than a drop of water, but 700 times bigger than a molecule of moisture vapour. So whilst water droplets cannot penetrate the GORE-TEX membrane, moisture vapour (a gas) can easily escape. Integrated into the ePTFE structure is an oleophobic, or oil hating substance that allows moisture vapour to pass through, but creates a physical barrier to contaminating substances such as oils, cosmetics, insect repellents and food substances.The result is a durably waterproof, windproof and breathable membrane.

The properties of the GORE-TEX membrane at a glance:

- Durably waterproof
- Very breathable
- Highly cold resistant
- Extremely light
- Resistent to flexing

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