Please refer to the size chart in the pictures and measure your favorite shirt or hoodie against the size chart. The hoodies in my shop are Gildan brand unisex sweatshirts, and the tank tops are Next Level brand and run small. For the tank tops, double the chest measurement in the size chart to get the bust measurement. I highly recommend that you reach out to me if you are not sure what size you should order, as everything in my shop is made to order and I do not accept returns/exchanges.