Galvin Green Stay Cool Technology explained...

Coolmax | Stay Cool
CoolMax performance fabric is a new generation of 'engineered' fabric specifically designed to keep you cool and dry. With a very high 'breathability' factor and the ability to move moisture away from the skin to the outer layer of the fabric, CoolMax is the ideal fabric for garments used in hot and/or humid conditions, where performance is the key.

Thanks to CoolMax's unique 'four channel' fibres moisture from perspiration is speedily moved to the surface of the fabric where the large surface area ensures rapid evaporation. The larger spaces between the filaments of the fibres also provide excellent breathability. The result is cool, dry comfort.

CoolMax fabrics are extremely easy to wash and consistently retain their shape, size, and that 'new' feel, wash after wash.