It is proven that the power of a T-shirt in marketing terms is worth it's weight in gold.
It could be that you want your company and your staff to be aligned in association with your branding and a T shirt with your brand on it cements the thought of any consumer that yours is a professional business.
A T shirt or walking advert can be used to market a new product, an event, a specific message or personal information that you require your customers to take note of. Your Staff don't even need to speak as the T shirt will do that for your business.
Further more a team of T shirts wearers immediately stand out from the crowd and the consumer automatically understands what that T shirt represents. So it is important to get it right and not convey the wrong message!
T shirt marketing is a cost-effective inexpensive method of communicating to those surrounding the wearer, so what are you waiting for?!