Our shirts are always 100% cotton, sizes S to XL are soft cotton, similar to American Apparel shirts, our 2XL and 3XL shirts are heavier, sturdier shirts, also all cotton.
Our T-shirts are NOT pre-shrunk, therefore they may, like all cotton products, shrink a little when put in the dryer the first time. Never a whole size, just some. If you want to avoid that, please hang-dry after washing it.
Shirts are true to size.
Size charts can be looked up online:
S to XL: Gildan Softstyle 4.5 Oz 64000
2XL, 3XL: Gildan Heavy Cotton 5.3 Oz 5000