Promotional Clothing Trends, clothing including hats is also a good idea for an advertising campaign. T-shirts and hats get seen by more consumers than most other types of merchandise. The can be given to your customers and as well as your staff. Extra care and attention should be given when selecting casual or corporate clothing as consumer tastes, style and sizes need to be considered and accessed. Your options range from smart work wear and uniforms to funny T-shirts and beachwear. Caps have also been one of the most popular promo items in Australia for many years.