Nylon is a generic designation for a family of synthetic polymers, more specifically aliphatic or semi-aromatic polyamides. Nylon polymers have found significant commercial applications in fibers (apparel, flooring and rubber reinforcement), in shapes (molded parts for cars, electrical equipment, etc.), and in films (mostly for food packaging).

Polyester is a category of polymers that contain the ester functional group in their main chain. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include naturally occurring chemicals, such as in the cutin of plant cuticles, as well as synthetics through step-growth polymerization such as polybutyrate. Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not. This material is used very widely in clothing.

Engineered for a full spectrum of benefits – millions of pair pockets trap body heat in extreme conditions and lack of bulk means great freedom of movement for the activity. The PrimaLoft® proprietary treatment ensures excellent performance as the insulation maintains its warmth properties even in wet conditions. Designed for durability in a lightweight design for active applications, packability, breathability, and softness. No need to compromise on performance.

ThermoBall™ is a revolution in insulation technology. Unlike traditional, continuous-filament synthetic insulations, the small round PrimaLoft® synthetic fiber clusters closely to mimic down clusters; trapping heat within small air pockets to retain warmth.

The DWR treatment is the first line of defense against wet weather conditions and prevents the face fabric from becoming saturated. DWR is a polymer applied to the face fabric that creates microscopic pegs, or hairs, that protrude from the fabric. These pegs encourage the water droplets to band together and roll off, instead of spreading out along the face of the fabric and soaking through.

The YKK® is the world's largest zipper manufacturer. YKK® products use the best materials that are made by the most modern equipment and are mass produced under extreme quality control. YKK® was founded in Japan, in 1934, by Yoshida. In the early years, Mr. Yoshida's company carried his name; it was called Yoshida Kogyo Kabushikikaisha, or YKK® for short.