Soft, lightweight material. Very thin and cool. This type of polyester weave that almost feels like cotton doesn't wick quick as well as a jersey that has a little bigger mesh material (like the Powertrain jersey). I find if I exercise indoors at the gym it gets as soaked as a cotton tee and doesn't really dry very fast. But when it does dry it feels like a clean shirt again. Material is unlikely to stand up to outdoor abuse due to how thin it is.