What are Cool-jams?
Our Cool-jams' sleepwear fabric is a specially designed polyester microfiber that has been engineered to feel like soft cotton but testing shows that it one of the fastest wicking and drying materials in the world. This ground-breaking Cool-jams technology, with its super soft "cotton-like" comfort and feel, offers the superior odor and bacterial control of our natural antibacterial treatment, delivers unparalleled performance in moisture management and lasts 6 times longer than cotton fabric. Certified lab testing shows that it performs better than any other wicking sleepwear tested.

Cool-Jams performed better than all other wicking brands
(HIGHER RATING=BETTER)

How was Cool-jams Sleepwear developed?
Our Cool-jams fabric was developed initially for the Canadian armed forces. The military had requested development of a fabric that would look and feel like cotton but had other characteristics to include wicking ability, temperature regulation, quick drying ability, anti-microbial, anti-pilling, washability, breathability and wearability. Our proprietary technology was later engineered into our super-soft Cool-jams sleepwear which makes Cool-jams the most innovative and advanced performance sleepwear collection available anywhere. Our customers tell us that once they've tried Cool-jams Wicking Performance Sleepwear, they'll never sleep in anything else again.
Now let's get down to the science behind our Cool-jams sleepwear:
MST microfiber technology uses very fine fibers which are made into long strand fibers called filaments. Each filament is finer than a strand of human hair. 5 to 8 filaments are twisted together to form a fine thread. Due to the proprietary blend of filaments, and their configuration within the thread, we create a greater surface area for moisture to travel along the thread. These threads are then knitted together in a specific way to increase the speed of moisture movement through the fabric.
MST is a Three Step Process:
1
As the body perspires, moisture is transferred through the fabric from the skin to the outer layer of clothing, a process called moisture absorption or wicking;
2
The moisture spreads over the surface area (moisture transport/dispursement);
3
The disbursement process allows the outer air to evaporate the moisture (moisture drying or evaporation).
Capillary Action & Air Flow Management
Capillary action is the movement of moisture along the surface of a the fabric caused by the attraction of moisture molecules into the fabric molecules. By maximizing the capillary action of the fabric, we increase its ability to draw moisture from the body to its outer surface. Cool-jams fabric disperses moisture over larger areas in record time. Once on the surface of the fabric the vaporization of moisture molecules begins.

Antimicrobial Technology
Cool-jams® proprietary antimicrobial technology enables superior odor resistance in our fabrics through the use of a powerful yet natural antimicrobial agent.
The superior performance of this new generation antimicrobial technology has been achieved by combining application expertise with proprietary nano-technology manufacturing processes. The ultra-fine particles adhere more effectively to the fabric for longer protection and is 100% environmentally friendly and EPA approved.
Laboratory results confirm that the antimicrobial properties of our proprietary antibacterial agent remain strong after 50 or more machine washes. In trials, using typical application processes on Cool-jams fabrics, the bacterial kill rate after 50 machine washes was 99.9%.
With Cool-jams® antimicrobial technology your Cool-jams Sleepwear will always stay fresh and odor free.