The simple answer is NO.
GSM, or grams per square meter, is a measure of the weight and thickness of a fabric. It is often used to compare the quality of different fabrics and can be a useful tool for determining the weight and feel of a t-shirt. In general, a higher GSM indicates a thicker and heavier fabric, while a lower GSM indicates a thinner and lighter fabric. However, GSM alone is not a definitive measure of t-shirt quality. Other factors, such as the type of fibers used, the construction of the fabric, and the way the t-shirt is made, can also affect the overall quality of the t-shirt.
How to find the quality of a t-shirt?
There are several factors to consider when evaluating the quality of a t-shirt:
Fabric: The quality of the fabric is one of the most important factors in determining the overall quality of a t-shirt. Look for t-shirts made from high-quality, durable fabrics such as Pima cotton, Supima cotton, or organic cotton. Avoid t-shirts made from low-quality, synthetic fabrics such as polyester, which are prone to fading and pilling.
Construction: Pay attention to the construction of the t-shirt, including the stitching, the hem, and the neckline. Look for t-shirts with clean, even stitching, a well-made hem, and a smooth, comfortable neckline. Avoid t-shirts with loose or uneven stitching, poorly made hems, or rough, irritating necklines.
To conclude, GSM is the weight of the tee. While the yarn fibre defines the quality of the tee.