Today, a lot of the baseball club graduates of my old high school gathered to celebrate the manager's 60th birthday. I'm glad that I could meet lots of the seniors and juniors of the baseball club.
60th birthday is one of the biggest birthdays in Japan and is called Kanreki (還暦) in Japanese. This kanji, 還 (kan) means circulate and 暦 (reki) is a calendar and we can understand it as years. So kanreki literary means, your years completed a circle, in other word, you come back to the same year as when you were born.
The colour red is believed to have an effect of protection in Japan and people would put red clothes to new born babies.This vest is called “chan-chanko” and is a sleeveless kimono jacket for children. Since Kanreki has a meaning of re-born, people started to give the 60-year-old person a red vest and a hat.