You don't have to be watching television or listening to the radio to find advertisements. With marketing all over the internet, on billboards, and in stores and malls, you'll find advertising items nearly everywhere. One of the most powerful ways to advertise, however, is through brand apparel. Everyone wears logo clothing, in some level or another. From the printing of logos and brand names, to more subtle and distinctive designs, marketing through promo apparel is one of the most powerful ways to market your products.
When someone wears a t-shirt or a pair of jeans with a company's name or logo printed on them, that individual is marketing for the business. What better way is there to have your product advertised? It's a free advertisement, and word of mouth is almost always a more reliable tool than simple print ads or billboard campaigns. When people go into a mall, and see all sorts of people walking around wearing the same brand, they'll want to be a part of the hype. They may wonder where they can get in on this new, cool brand, and they'll begin to seek out your products. People are much more likely to purchase products when they are advertised to subtly, rather than walking into a store that has big, red "Buy Now!" signs on every other rack. Also, the power of group advertising is not to be missed. Every person who wears your logo or name on their apparel is approving your stock, and new customers will take this type of marketing much more sincerely than anything a company salesperson could tell them.
Even when your brand or name isn't printed directly on the clothing, your products can still work as printed clothing. If your outlines are trendy and alluring, people will ask those individuals wearing your clothing where they got the item.