New Collar, Sleeves / Shirts

I wear new collars and sleeves everyday.
This design suggests that businessmen who have to wear suit everyday in busy lifestyle change only collars and sleeves which get dirty very easily. If they go to work or go on business trip taking just one dress shirt with some of collars and sleeves, it will be much cleaner and lighter for commute, business trip. Collars and sleeves are made with zipper and is easy to change with many kinds of colors, pattern, so it makes a person look neat. This is nice, and useful when there is no choice but to do laundry just because of the dirty part of collars or sleeves, especially for single men living alone.