T-shirt Dropshipping

I got a really good idea to dropship some T-shirts I found on Aliexpress. Am I free to sell any T-shirt I find on Aliexpress or are there some potential legal issues I could run into?

Depends where you will be hosting your shop and how you are gonna drive traffic to your shop. For eg, advertising trademarked t-shirts on Facebook ads is a definite no-no. Selling copyrighted stuff on Shopify is also not allowed.