94% polyester, 6% elastane. HeatGear® fabric keeps you cool, dry and light. Performance polo fabrication with flat back mesh inserts. Anti-pick and pill finish for lasting durability. Anti-odor technology with 30+ UPF protects your skin from the sun's harmful rays. 94% polyester, 6% elastane. HeatGear® fabric keeps you cool, dry and light. Performance polo fabrication with flat back mesh inserts. Anti-pick and pill finish for lasting durability. Anti-odor technology with 30+ UPF protects your skin from the sun's harmful rays.