The term 'bowler or boater' refers to a type of HAT. It is a round-crowned, hard felt HAT with a brim that is slightly wider than the crown. The brim is usually turned up at the sides and back, and the HAT is often decorated with a ribbon around the base of the crown. Bowler or boater hats were originally designed in the mid-19th century for men who worked outdoors, such as farmers, fishermen, and sailors. Today, bowler or boater hats are still popular among men and women for formal occasions, such as weddings and other special events.