âThunder, thunder, thunder, ThunderCats, HOOOOO!â If there was one rallying cry that sent a generation rushing to sit down in front of their TVs early on a Saturday morning in the 80s, it was the opening to ThunderCats. This simple but stylishly designed heavyweight tee features the instantly recognisable emblem of the series embroidered in red on the chest and we think fans of Lion-O, Panthro and Cheetara will be very excited!