If you are purchasing t-shirts, you have probably noticed that one of the primary elements that effect price is the weight. The t-shirt is often described in ounces or abbreviated "oz.".
If for example, the shirt manufacturer indicates a weight of 6.1 oz. it does not mean that the shirt actually weights 6.1 ounces. The weight is in regard to the "fabric" not the actual shirt. When clothing manufacturers calculate fabric weight, they take a standard-sized piece of the material which is often a "square yard" and weigh that piece of fabric on a scale. In this example, the square yard of fabric would weigh 6.1 ounces.
In the United States, we measure in ounces. In other countries, they may use grams or kilos.
Learn about Fleece Weights.
Learn more about Textile Units of Measure.
Learn about different types of t-shirts.
Learn about fabric by the yard.