Once you make it to the "Avatar Editor" screen, you'll be able to choose from several options that let you customize your avatar's clothing, accessories, body, and animations.

Customising your Roblox avatar doesn't affect how the game plays, but it does make the experience more personal to you, which can be important if you plan to spend a lot of time with the platform.

How to make shirts and trousers on Roblox. You'll be best off having a couple of templates for this! So take a look at the the image below, and you should gain an idea of what your T-shirt design ...