Get ready to smell good and look fabulous when you cross that finish line in the Catalyst Shortsleeve T from Under Armour®. Ragland sleeve construction. Anti-odor technology. - Prevents growth of odor-causing microbes. UPF 50+. Lightweight, anti-pick high-gauge knit fabric. HeatGear® fabric. - Keeps athletes cool, dry and light. 100% Recycled Polyester. Imported.