Based on this product's specifications, here are some alternatives and similar models
Messenger Case Manhattan London Laptop Bag 17.3"
Summary description:
The Manhattan London Laptop Bag is designed for laptops up to 17.3". It features a removable shoulder strap, a carrying handle, and an accessories pocket. Weighing only 430 g, it is lightweight and easy to carry. The monochromatic design adds a sleek look. Plus, it comes with a three-year warranty for peace of mind.