Wears like a cotton shirt. The Scrub Amp SS BAT bike jersey from ION is a really robust downhill/enduro jersey with lots of function. The front is made from drirelease Eco - a blend of recycled polyester and organic cotton. The polyester on the back and sleeves has a permanent odor-inhibiting finish. This makes it pleasantly breathable and quick-drying on the trail. A real all-rounder among cycling jerseys. So, what are you wearing?