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The Under Armour Heatgear Flyweight Run 5" Short is a great go-to training short for any runner's wardrobe. Perforated panels on back and sides increase breathability in key sweat zones, and front and side reflective details help you be seen in low light.  An internal key pocket and a back envelope pocket provide great storage for essentials.


  • Black/Yellow (002)
  • Graphite (041)


  • Approx. 4" inseam, 14.5" outseam (size medium) 
  • Perforated mesh for increased breathability in key sweat zones 
  • Elastic waistband with internal drawcord for a secure fit
  • Internal mesh liner to wick moisture and keep you dry and comfortable
  • Back envelope pocket to stow small essentials (Approx. 5.5"W x 4"H)
  • Internal key pocket (approx. 2.5"W x 2.5"H)
  • Front and side reflectivity for enhanced breathability in low-light settings


  • Main Body (100% Polyester), a lightweight fabric with perforations in key sweat zones to increase breathability
  • Liner (100% Polyester), a highly breathable mesh liner to keep you dry and comfortable

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