https://smashmockup.com/3-realistic-shoe-box-mockups/

Get this beautiful set of 3 realistic shoebox mockups for FREE. Customize box and background color and apply your own pattern or design on box lid or bottom. Display your packaging design with 4K image quality (4500×3000 – 300dpi) with changeable background and transparent shadows.

This fully layered PSD file allows you to show off your design. The PSD file allows you to change all elements and come with many customization options. Completely layered file with smart object.