Coolmax is a high tech fabric specificallyand uniquely engineered to keep users dry & comfortable. Coolmax fabrics are made from specially engineered polyester fibres from ADVANSA with an increased surface area. This special four-channel or sixchannel fibre forms a transport system that pulls moisture away from the skin to the outer layer of the fabric. It then dries that moisture faster than other fabrics to thermoregulate the body by evaporative cooling.