The UI design for Shirtee blends modern e-commerce with a vibrant, fashion-forward approach, focused on providing users with a personalized shopping experience for custom t-shirts. The layout features large, eye-catching visuals of designs, with clear categories for various shirt styles, sizes, and design options. Interactive tools allow users to upload their own artwork, preview custom designs, and easily navigate through color and size choices. With a clean, user-friendly interface and a streamlined checkout process, the design ensures a seamless shopping experience, while a dynamic product showcase keeps the experience engaging and fun.