Under Armour Threadborne™ Siro 3C Twist Short Sleeve Shirt

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Shipping Note: Leaves our Fullfillment Centre in as few as 5 business days. See Shipping Info and Online Return Policy for details.


Item #: 332167039

All Threadborne technologies have one goal: push the limits of design & manufacturing to reach new levels of comfort & performance. The Under Armour Threadborne™ Siro 3C Twist Short Sleeve Shirt is built with Threadborne Siro technology, where the fabric is super lightweight, won’t cling to you, won’t chafe & dries incredibly fast.

Threadborne™ Siro: Super-light, dries incredibly fast & won’t cling to you.



  • Threadborne Siro fabric feels insanely soft, is extremely light & dries incredibly fast
  • Anti-odor technology prevents the growth of odor-causing microbes
  • Loose: Fuller cut for complete comfort.


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