Button down collar - A classic collar where the points of the collar are held in place with buttons.
Fit
Regular fit - Or Classic fit, has a looser design around the arms and chest for comfort and movement. The fit around the waist is straighter and longer than Slim fit. Suitable for most body shapes.
Fit
Casual/Loose fit - A wider fit without being oversized. The cut is straight and often shorter than Slim fit, which gives a more spacious and comfortable fit.