T-shirt design PSD including duotone effects. Change the text and images as you please to create endless duotone designs. You can create all the designs you want with it! Use this PSD file to create different variations and boost your originality. Save your creations into Merch-ready transparent PNGs you can use on Merch by Amazon, Redbubble, Etsy, Printful and other PODs. Includes instructions on how to use!