Outdoor Activities? Oh You Mean Reading Outside Our baseball t-shirts are made from preshrunk 100% cotton and a heathered tri-blend fabric. Original art on men’s and women's baseball tees. All shirts printed in the USA. Nothing can beat a sweet nap outside in the sun with the company of a good book, especially not the horror of outdoor physical activity. This nerdy book lover's shirt is a perfect choice of apparel for any cute geeky outfit!