Under Armour Men's Threadborne Siro Short Sleeve Shirt
The Under Armour Men's Threadborne Siro Short Sleeve Shirt features the next generation of UA innovation - Threadborne™ Siro. It feels insanely soft, is extremely light & dries incredibly fast. Anti-odor technologies keep the funk at bay, so you're sure to have a new go-to shirt for hitting the hardest of workouts.
- Under Armour