Based on this product's specifications, here are some alternatives and similar models
Sleeve case Case Logic Ibira IBRS-215 for 39.6 cm (15.6") laptops, polyester, black
Summary description:
Case Logic Ibira IBRS-215 is a lightweight sleeve case designed for laptops with screens up to 39.6 cm (15.6"). Made of polyester and weighing 230 g, it provides a slim protective layer against scratches and light impacts. The monochromatic black surface and compact form factor make it suitable for daily commuting, storage in backpacks or briefcases and short business trips.