180 GSM cotton fabric We use 180 GSM for our t-shirt fabric which is perfect for Indian climate. Gives you a comfortable feel whenever you wear. 100% Bio Washed Cotton Bio-Wash is a finishing process that enhances fabric quality by decreasing the pilling tendency . This process removes protruding fibres & slubs from knitted fabrics, significantly reduces pilling, softens fabric hand and provides a smooth fabric appearance. Perfect gift for gym and workout lovers.