By Chiara Fiorillo Prince Harry is probably attending yoga and pilates classes as his legs look more defined than usual, a fitness expert has said. The Duke of Sussex, 39, was seen out and about as he went for a walk near his home in Montecito, California. Wearing a pair of shorts, along with a beanie and puffer jacket, the royal’s physique looks more toned than it was when he played rugby and polo. According to personal trainer Lewis Paris, it is likely that regular trips to the gym have kept Harry looking toned and lean. The expert believes his exercise routine could be made up of running or…