How to Make T-Shirts in ROBLOX T-Shirts are the easiest clothing to make in ROBLOX. Create an image that’s ideally 512x512 pixels and then upload it to ROBLOX via the Asset Manager in ROBLOX Studio.

Image format .png, .jpg, .tga, or .bmp can be uploaded to Roblox. The next step is to upload it to the platform. Head over to the Roblox Studio and select the Asset Manager option in the View tab.