Any seasoned runner can affirm the advantages of running in synthetic layers. The On Footwear Performance Top is engineered to keep you mobile and comfortable on your most demanding runs. The tear-proof front fabric dries quickly when you're logging long miles on warm days while the breathable mesh back provides ventilation for enhanced cool comfort. The back yoke keeps you mobile while the fully taped, seamless design of the shirt eliminates rubbing and hot spots to keep you comfortable while you race and train. Lastly, the slim fit offers an enhanced range-of-motion to adhere to dynamic movements on your journey.