Login in to the Roblox website. Open the character customization page. Click the "Shirts" button found in "My Wardrobe.". Click the blue "Create" button at the top of the screen. Click the blue "Shirt Template" link located in the instructions. Right-click and save the template image.What size is the Roblox shirt template?
The image size should be at width of 585 pixels and height of 559 pixels. If you design the pattern on image editor, it is always recommended to set the template on different layer with lower opacity. The Roblox shirt template maker often provides file in low opacity.