The nagajuban for men, a Japanese undergarment to wear underneath your kimono
The Nagajuban is a Japanese undergarment to wear underneath your kimono. It resembles a kind of white cotton dress and prevents direct contact of the kimono with the skin. Cleaning a kimono is an expensive and complex task, in contrast to the nagajuban which is simple to clean.
This undergarment is worn underneath the kimono (not the yukata) and only visible at the collar.