M, L, 3x only. Boo! is what it says on the back of this shirt at the top between the shoulder blades with 29 clear crystals plus silver nailheads. This shirt is so much fun. The ghost on the front is made of Clear and grey Swarovski crystals and nailheads. There are well over 90 crystals on the front alone. The silver and nailheads are different sizes and types, shiny, flat, etc. There are also some gold stars. All Halloween items are a 2 week return and must be sent back before Halloween if you want to return them. Clothing must be returned unworn with all tags attached. swarovski crystal and nailhead design 50% cotton and 50% poly banded bottom , long sleeve,sweatshirt.