Apex Men's Marathon Running Singlet

Customise Your Outfit

*FABRIC UPDATE: Now constructed from CS Zero.

Incredibly lightweight and breathable, made from our exclusive Champion System CS Zerofabric the Apex Marathon Singlet is the ideal choice for training and competitions. With a loose fit, scoop–neck design this running essential will deliver the performance and comfort you demand.

NOTE: For a more fitted garment CSUK would suggest looking at our Apex Run Singlet, not as lightweight but the same great performance.


  • CS Zero
  • 100% Polyester
  • Weight 92g/m2


    • Constructed from CS Zero fabric, our lightest sublimated fabric with our highest levels of moisture wicking.
    • 100% permanent UV protection yarn able to reach UPF50+
    • Loose fit to allow for additional ventilation on long runs
    • Fully customisable. 
    • No annoying label tags at the neck