After much research and prodding my vendor, he found this fabric which is now our new standard. We call it “Challenger”. It has a lighter “hand” (feels softer) that the old fabric (called “Tempo”), but is more resistant to abrasion (from backpacks, accessories, etc.). Both custom cycling jerseys and technical shirts are made with this great fabric.
Chronic Cycling standard shirt fabric: "Challenger" (Click for larger image)