The most frequently used material is cotton. It is very important to take into account the density of the thread, the heavier the material (from 180g/m2) the better the quality of the t-shirt. However, lighter weight t-shirts (about 130g/m2) can also be useful for summer gifts because they are cooler and lighter. If you are on a tight budget, we recommend this last grammage because it is the most economical. You can also find polyester sports shirts, which have recently become very popular for these occasions.