Leatt DBX 5.0 All Mountain Jersey

Ditch the flannel and get fast. Leatt's DBX 5.0 All Mountain Jersey fights water and dirt, breathes well, and will drop a few seconds off your best times. With enough stretch to and a tailored fit, it'll stay close without making you look like a roadie, and it's reinforced at the elbows so it won't rip if you low-side a turn and go down trying to show off.