Kids Reward Sticker: Backpack with ‘Prepared!’ Medal Design Prompts

Create a clean, high-contrast vector illustration of a backpack showcasing a prominent medal badge that reads ‘[Achievement Title]’. The style should be pure black and white, no shading or gradients, and set against a white background for perfect die-cut sticker production. The backpack should have simple, bold outlines with clear details like straps and zippers, while the medal is circular with a ribbon, prominently displaying the ‘[Achievement Title]’ text. The design must allow for easy recognition and colorization in sticker formats, emphasizing clarity and boldness without complex shading.