Bucks are casual oxford shoes which are traditionally made of suede buckskin or nubuck. Bucks feature plain toes with lightweight rubber soles and are usually considered to be warmer weather footwear due to the good breathability of the uppers.
About Dress Shoes:
Footwear for formal occasions. Dress shoes are usually made of more delicate materials such as suede, silk, satin, patent leather, or peau de soie. Dress shoes often feature eye-catching designs, richer colors, and decorative ornamentation. Examples are business shoes, evening shoes, bridal shoes, and prom shoes.