This funny introvert shirt is sure to get a laugh from all those who don't enjoy groups! Whether it's against joining groups or just avoiding groups of people, this is the shirt for you. * Product Details 4.2 oz 100% airlume combed/ringspun cotton (solid colors) 52% combed and ringspun cotton, 48% polyester (Heather colors) 90% airlume combed/ringspun cotton, 10% polyester (Athletic Heather/Black Heather) Shoulder taping Side-seamed * Product Sizing Shirt is unisex - looser cut, runs true to size. Size chart is available * Shirt and Design Details This design is high quality heat transfer VINYL **Shirt MUST BE washed inside out on cold, and tumbled dry on low in order to preserve the design.** Design is pressed with a professional grade Heat Press.