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Gore-Tex is a unique tissue paper thin microporous membrane, which contains over 9 million pores per square inch. Each pore is 20,000 times smaller than a water droplet, yet some 700 times bigger than a moisture vapour molecule. This gives the fabric excellent levels of waterproofness and breathability.
The outer face of the Gore-Tex fabric is coated with a hydrophobic DWR (Durable Water Repellency) treatment which encourages surface water to bead up and run off. This improves the wet weather performance of the garment and promotes breathability by preventing wetting-out of the outer face.
This guaranteed waterproof Gore-Tex technology is specifically designed for footwear and uses a sealed PTFC sock-like insert to create a breathable membrane. Where it differs from Gore-Tex Extended Comfort Footwear is that it offers moderate insulation making it suitable for a wider range of activities and temperatures.
Vitale Bramani developed the first Vibram rubber outsoles after the deaths of six of his friends in the Alps. In 1937 the first units were patented and launched. Today the yellow logo is found on everything from rock climbing shoes to high altitude mountaineering boots. Vibram remains the most recognised and respected manufacturer of outdoor footwear outsoles in the world and is renowned for the stickiness and durability of its products.
The Powermatic 200 is a tough durable boot. It features the revolutionary Power Matic sole designed to offer unrivalled stability and shock absorbency not to mention grip and support. More flexible than the 500 (not applicable with crampons) it still features Gore-Tex lining for protection and comfort.
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