HeatGear® Flyweight is the lightest UA material yet—ideal for the technical runner. If being the lightest, most breathable fabric isn’t enough for you, there are also mesh panels, right where you need them for more ventilation.

– Ultra-light, smooth fabric provides extreme comfort & performance
– Mesh back panel provides strategic ventilation
– Moisture Transport System wicks sweat away from the body
– Anti-odor technology prevents the growth of odor causing microbes
– Graphics & logos are reflective for greater visibility on low-light runs
– Body: 3.1 oz. Polyester
– Mesh: 2.2 oz. Polyester