The lighter you are, the further you'll go.
It doesn't take many long-distance runs to realize that not all running shirts are created equal. For example, the Gore Running Wear Men's Fusion Short-Sleeve Shirt is a lot lighter than most other running shirts, and is an excellent option for marathoners or endurance athletes who regularly commit to long, arduous circuits. The Fusion even has ultrasonic seams in the shoulder area that minimize chafing and friction when running with a hydration system, so it'll help keep you cool and comfortable no matter how long the run.
A lightweight shirt for long-distance running
Ultrasonic seams minimize friction
Reflective logo on front visible in low light
Shifted seams lessen chafing after miles of wear
Item #GRW001O

Material85% nylon, 15% elastane
Fitslim
Stylecrew
Reflectivelogo
Recommended Userunning
Manufacturer Warranty1 year