Dress shirts are shirts with a collar, a full-length opening at the front from the collar to the hem with cuffed sleeves. The white cotton shirt with collar is the most important detail and tells you about the whole style of not only the type of clothing but of the person wearing it.
Buttons and the angle and height of the point length completely change the look of the shirt. The men's dress shirt collar is the most important style detail, both in determining the garment's formality level and in how it flatters the face of the wearer.
Button-down collars are the least formal and extremely versatile. These shirts look good without a tie but can just look awesome with a support of a tie, sweater, blazer or with a sports coat combination.
Most of the men's dress shirts come with some sort of pointed collar, but there is a big room for variety here. Like a standard point collar looks good on men, the men with narrower faces look better with slightly shorter ones and a round face man carries well above with long collar points.
Formal shirts are generally made of white pique cotton that has a rich and woven texture. This shirt is an appropriate choice of black or white tie and not suitable for anything else. If you want to own one formal dress shirt for yourself, you can have a wide variety and range of combinations as per your choice and demands.