How to Decide Better Fabrics against Particular GSM

This question is asked by one of the OCS readers. The answer to the question is not clearly provided in this post but I have explained what all things you need to look at to choose the right fabric.

GSM is the weight of fabric per square meter area in grams.

Here what do you mean by better fabric? The ‘Better’ factor varies from product to product. Better in terms of what? - Comfort, or hand feel, look of the fabric or its texture or durability? All these better factors may not be directly related to the fabric GSM.

Fabric GSM and Fabric quality
Knits fabric

So first you need to define your product category and product design. You also need to decide your customer segment. I assume that you have decided your product. Assume that it is cotton knits product. Now let discuss on the question about selecting best fabric in same GSM.

What GSM to use for your product?

It depends on the requirement end users. Secondly, what thickness of fabric you are going to use for your design? Sometimes you may be required light weight fabric for summer clothing (Single jersey tee) and sometimes you will be need thicker and heavy gsm clothing like sweat shirt.

As GSM represents the weight of the fabric per square meter in grams,
  • Lower the GSM lighter the fabric and 
  • Higher the GSM heavier the fabric is. 

While gsm of the fabric increases fabric cost per garment also increased as the weight of the cotton per garment increases.

It would be difficult to decide a better fabric based on the fabric GSM without having the end product and usage of the product (garment).

In a particular GSM, fabric quality depends on fibre content, yarn counts and fabric construction (i.e. EPI and PPI). Again what construction of fabric to be used for the particular GSM depends on the end-use of the product?

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