Coolmax

Coolmax is the brand name for a series of polyester fabrics developed and marketed by The Lycra Company.
Coolmax is marketed as "moisture-wicking" and "breathable". As a polyester, it is moderately hydrophobic, so it absorbs little fluid and dries relatively quickly. The cross-section is non-round, increasing surface area by an estimated 20% in order to produce a wicking effect via capillary action.
The Lycra Company makes extensive use of co-branding in their marketing of Coolmax and other clothing materials, partnering with their customers to increase awareness of their product among end consumers.
Like other polyester fabrics, Coolmax is flammable and has a relatively low melting point, giving clothes made from it a tendency to melt and fuse to the wearer's skin when exposed to high heat. This has led to Coolmax and other polyesters being restricted or banned in certain high-fire-risk applications, such as firefighting and front-line combat.