Adidas, Ann Taylor, Banana Republic, BCBG Max Azria, Brooks Brothers, Calvin Klein, Coach, Columbia Sportswear, Gap Outlet, J.Crew, Levi's, Nike, Polo Ralph Lauren, Tommy Hilfiger, Under Armour, VF Outlet.
You might know it as the siesta. In Italy, it is called riposo. This traditional early afternoon shutdown varies from business to business, but usually lasts about 90 minutes to two hours. It may begin anywhere from noon and 1:30pm and run until anywhere from 2:30 to 4pm.
You didn't say when or where you were going but we just returned from 3 weeks in Italy 3 days in Rome, 2 weeks at a rented villa in Umbria, and a final 2 days in Rome so I pass along some info that might be helpful. The 'Regionale' train service in Italy is excellent.