1. Design files: Typically in high-resolution vector format (AI, EPS, or PDF) that can be scaled without loss of quality. This is essential for proper printing and embroidery.
2. Mockups: Virtual or physical images of your design on the t-shirt. This gives you an idea of how the final product will look and helps you make any necessary adjustments to the design before printing.
3. Color palette: Specifying the exact colors you would like used in the t-shirt design to ensure color accuracy.
4. Font selection: Choosing the ideal font(s) for the design.
5. Printing specifications: Detailed instructions for the printing company, outlining the appropriate printing method, dimensions, colors, placement, and other necessary details for production.
6. Embroidery specifications: If using embroidery, this would include instructions for thread color, sizing, and placement.
7. Copyright release: If you worked with a designer, make sure they give you written permission to use the design they created for you.
These items should give you everything you need to produce your t-shirt design, regardless of the method of production you choose.