Denim: In Style With Inherent FR

RIFIRE® Comfortable FR Wear™ — a line of flame-resistant (FR) fabrics and apparel
featuring moisture-wicking, quick-drying dri-
® with FreshGuard
® anti-odor technology — first appeared in late 2006, with the technology initially
being used in knitted base layer garments and a few outerwear garments and accessories. The
technology — offered by Columbus, Ga.-based Drifire, an Optimer Brands company — was conceived as
an alternative to polyester-based technology because it can provide the same moisture-wicking,
quick-drying performance benefits but won’t melt when subjected to sudden extreme heat such as that
generated by an explosive device. First targeted uses were for military personnel fighting in Iraq
and Afghanistan.

Drifire fabrics are made with a blend of 85-percent inherently FR, hydrophobic modacrylic
and 15-percent hydrophilic cotton, Tencel
® or other natural fibers. Modacrylic is a self-extinguishing fiber that doesn’t melt or
drip, and Drifire apparel now is offered not only for military applications, but also to
first-responder and industrial personnel who risk exposure to explosions, fire and/or arc flashes.


DRIFIRE® FR Denim Fabric provides inherent FR protection, dri-release
® with FreshGuard
® moisture-management and odor-neutralizing performance, and superior abrasion
resistance for jeans, jackets and shirts to dress electrical and utility workers in style.

One of the newest offerings in the line is Drifire FR Denim Fabric, a modacrylic/cotton
blend for pants, jackets and shirts for electrical and utility workers. According to Dustin Cohn,
chief marketing officer, Optimer Brands, the fabric complies with National Fire Protection
Association (NFPA) 70E electrical safety standards and also hazard/risk category (HRC) 2 standards
for arc flash protection, achieving a 16.2-calories-per-square-centimeter Ebt arc rating.

“There are other FR denims, but they are 100-percent treated cotton,” Cohn said, noting that
the FR treatment will eventually wash or wear out of the denim. He added that Drifire FR Denim
Fabric has a very comfortable hand and feel. “The hand and feel of a Drifire jean are phenomenal.
You would never know it’s a FR jean, and the look aspect is also important. Americans love their
jeans, and it is important to make denim look and feel like denim.”

Cohn provided test data showing that, compared with traditional FR denims, Drifire denim
provides superior performance in the areas of moisture wicking, water release, drying rates and
abrasion resistance.

“In Drifire denim, the next-to-skin filling yarn provides the moisture wicking away from the
skin to the outer fabric surface,” said Rob Hines, vice president of product development, Drifire.
“The filling has the dri-
release hydrophobic/hydrophilic ratio, with the inherently FR modacrylic providing the
hydrophobic performance and cotton providing the hydrophilic function,” he explained, adding that
the modacrylic in the filling is sufficient to provide the FR self-extinguishing performance to the
whole fabric. There also is a bit of nylon in the mix to contribute to the fabric’s abrasion

The denim fabric is woven by Columbus-based Denim North America, one of the largest denim
manufacturers in the United States, Cohn said. “We wanted to partner with someone who does regular
denim and can provide the denim look and hand level of quality, so workers don’t have to sacrifice
what they love about their regular jeans to have this FR product.” Although Drifire FR Denim has
been designed primarily for electrical and utility workers, there are other potential markets as
well, including petrochemical workers and fire fighters who happen to be wearing jeans, he said.

For more information about DRIFIRE® FR Denim Fabric, contact Ana Torres +1-312-878-0806;

October 19, 2010