Terms
What is gram weight?
Gram weight is generally used to indicate the thickness of the fabric. The bigger the gram, the thicker the clothes. T-shirt weight is generally between 160 grams to 220 grams, too thin will be very transparent, and too thick will be muggy, it is better to choose between 180 and 280 grams. (t-shirts with short sleeves are usually 180-220 grams in thickness, while long-sleeved T-shirts generally choose 260 grams of fabric.
What is count?
The number of yards of the length of cotton yarn with a definite weight of one pound. The higher the count, the softer. The T-shirts are usually 21 and 32.
Coarse yarn: Cotton yarn of 18 or less, mainly used for weaving thick fabrics or cotton fabric with pile and loop.
Medium count yarn: pure cotton yarn of 19 to 29 counts. Mainly used for general requirements of knitted clothing.
Fine count yarn: Cotton yarn of 30 to 60 counts. Mainly used for high-grade knitwear.