Button-down is a less dressy shirt and it is acceptable to wear with a tie, but generally without one. Button down collars are generally not appropriate to be worn with a suit. Hidden button down is a dress shirt that has hidden buttons under the Pooh Grateful Dead Must Have Been The Roses Shirt moreover I will buy this collar to hold down the collar . It can be worn with or without a tie. If it is a woven shirt with a structured collar – you can’t. The collar will have interlinings that are designed to be stable so that they don’t undergo dimensional change. A band collar shirt is a shirt with a small, stiff collar that stands up around the neck, without a fold or seam. It is often seen in menswear, but can be worn by anyone. I think they look sharp and modern, and can be dressed up or down depending on the rest of your outfit.