Coolmax is an advanced polyester yarn from AdvanSA. Mainly used for:

thermoactive underwear

sport underwear


Because of it's special four-channel or six-channel fibre that forms a capillary transport system it pulls moisture away from the skin to the outer layer of the fabric. It then dries that moisture faster than other fabrics to cool the body by evaporation. It's great for keeping thermal control under high physical stress making it perfect for sport applications.

It differs from old-generation yarns like Rhovyl, for example, in that it won't decompose under UV exposure and it won't emit a bad odour.

It is used for both dense and sparse (mesh) fabrics depending on application specific parameters of rigidness, resistance to abrasion or air transition.


Fabrics made of Coolmax provide a nice sensation of dryness and airy.

Yarn producer tags

We use the best quality yarn and encourage our customers to try out our products. Coolmax, like Thermolite, Tactel or Meryl, are already recognisable consumer brands. To each metre of fabric from Coolmax, Thermolite we add tag indicating the origin of the fabric. The tags are then attached to the final products made of our fabrics.

Our customers appreciate that. These tags mark the yarn’s origin and work as a product quality certificate. Tagged products are usually higher priced and sell more easily. Note; a fabric producer using yarn tags must meet a number of conditions concerning the fabric’s quality, composition and technology. Otherwise it would not be permitted to use reserved branding symbols. Janmar meets all the restrictive rules so we are granted full rights to use reserved tagging for products made of Coolmax, Thermolite, Tactel, Meryl, and other well known brands.

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