Based on this product's specifications, here are some alternatives and similar models
Decorative cushion cover Multitex LUXIMA 40x40+15 with overlap
Summary description:
Decorative cushion cover Multitex LUXIMA in size 40x40+15 with an overlap (zakładka). Designed as a removable cover for square cushions, it features an overlap closure for easy insertion and removal of the inner pad. Suitable for living rooms, bedrooms and lounges, it protects cushions from dirt while providing a coordinated textile finish to furniture and décor.