All women's T-Shirts are a premium poly/cotton blend for an athletic fit that is breathable, and gives the perfect amount of stretch.
Like all clothing with any cotton or poly, depending on how you launder it, it may shrink a little. Please keep this in mind when ordering. To avoid shrinkage, do not wash in hot or warm water. Best practices are to use "colors" setting on washing machine and hang dry or tumble dry on "cotton" setting on dryer, or low heat.