Alpha® active insulation is engineered for consistent warmth, while allowing greater breathability during activity. This air exchange technology creates sustained comfort without shedding layers, which isn’t an option during a mission.

Pertex Equilibrium uses a double weave construction. A tightly woven outer face provides protection from the elements. Combined with a more openly woven inner face, the fabric structure transports moisture away from the body.

YKK is the largest manufacturer of zips in the world and produces the highest quality fastenings on the market. At the company’s factory, every aspect of the manufacturing process takes place in-house, from smelting the metal to packaging the finished product in order to ensure the best end result for users.