To make clothing on Roblox, start by designing your clothing. Use a third-party image processing program like GIMP, Paint.NET, or Pixlr E. For T-shirts, create a square image, such as 512×512 pixels. For shirts and pants, use Roblox templates. These templates include parts like a large square for the front and back, tall rectangles for the sides, and smaller squares for the arms and legs.
Next, test your clothing in Roblox Studio. Go to the Avatar tab and select Rig Builder to choose a rig type. Insert a ShirtGraphic for T-shirts, or a Shirt or Pants object. Apply your designed image to the dummy character by selecting the appropriate property.
Finally, upload your clothing. Go to the Upload Asset page and select the asset type: T-Shirt, Shirt, or Pants. Upload your image, enter a name and description, and click the UPLOAD button. Once approved, your item will be available for sale.
By following these steps, you can create and upload your own clothing items on Roblox. Have fun designing and sharing your unique creations!