Tokyo's style is chic, modern and eclectic. Pack navy and gray suits for formal business occasions. Avoid red, as it's considered a very provocative color. Black is considered appropriate for funerals and little else. Pack lightweight pants, jeans, skirts and short-sleeved tops when visiting during spring and summer.
Shorts are inappropriate for both men and women.
Layer during the warmer seasons with sweaters and a fleece jacket. A medium-weight coat and a pair of gloves will keep you warm during the winter. Take loose-fitting garments. Traditional Japanese dinners require you to sit on pillows or tatami mats. Take closed-toe sandals and comfortable walking shoes that are easy to get on and off.