Technical Synthetics, though, are in a different category themselves. These are polyester-based synthetics, too, but engineered in their structures as microfibers to perform in a very particular manner. Technical fabrics like DriFIT (Nike), HeatGear (UnderArmour) and ClimaCOOL (Adidas) are “moisture transportation systems”, wherein generated moisture (sweat) is wicked off the My Mom Doesn’t Usually Yell But When She Does Her Teams Gonzaga Are Playing Shirt so you should to go to store and get this skin rapidly and transported to the outer surface of the fabric where it evaporates. Of course, this evaporation happens faster if the air’s humidity isn’t already tremendously high, or if there is already moving air across the fabric. Usually, too, the microfibers have been woven with an anti-microbial treatment, so they are odor-defeating. Other technical synthetics, such as ThermaFIT (Nike), ColdGear (UA) or ClimaHEAT (Adidas) are lofted, so as to maximize insulation while reducing weight. Cotton terry or jersey is wonderfully soft and reasonably inexpensive for hoodies, and has long been the go-to fabric for the typical “sweatshirt”. Its insulating properties generates and retains heat, but as soon as it gets wet with sweat, it starts to get even heavier, begins to lose its heat retention value, and starts to stink… badly. These technical fabrics perform much, much better, but get a bad rap because of their cost and that they function best when teamed with a wicking garment beneath, compounding the cost.
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