Lisa Frank | Bags | Vintage Lisa Frank Backpack | Poshmark。The Vintage 90s Y2K Lisa Frank Logo Clear Backpack is a stylish and lightweight backpack perfect for travel, activewear, and casual occasions. With a large size and blue straps, this see-thru vinyl backpack features a zip closure, top handle, and adjustable straps for a comfortable fit. The retro design, inspired by the 2000s and Y2K era, adds a fun and nostalgic touch to any outfit. Made from a blend of vinyl, canvas, and plastic, this unisex kids backpack from Lisa Frank is both practical and trendy.