Fabrics we use to make T-shirt: 100% Combed Cotton Single Jersey 150 t0 220 GSM 100% Organic Cotton Single Jersey 150 to 200 GSM 60% Cotton 40% Polyester Single Jersey 150 to 220 GSM 95% Cotton 5% Spandex/Elastic Single Jersey 160 to 250 GSM Quality Standard : AZO Free , High Quality Sewing and Finishing. OKEO-TEX 100 Standard , Eco Friendly Pre Shrink , Pilling Free, Soft and comfortable Use