Buy more and save on shipping. If you need to buy multiple sizes, as long as the shirts are the same price just change the quantity and in the notes of paypal mention what sizes you need instead. If you need mulitple shirts of different designs you can do the same thing as long as they are priced the same. If they are not priced the same please email us. If you don't see a color or size that you want just email us. Thanks for looking!!!