Based on this product's specifications, here are some alternatives and similar models
Casual backpack Rivacase Tegel 8465 Black Polyester ECO-FRIENDLY
Summary description:
The Rivacase Tegel 8465 is a casual backpack made from eco-friendly RPET polyester. It features a monochromatic black design, dimensions of 310mm width, 220mm depth, and 460mm height, making it suitable for daily use. The backpack is certified with the Global Recycled Standard (GRS), ensuring sustainability.