Based on this product's specifications, here are some alternatives and similar models
Camera Shoulder Bag Sony LCS-EMC for Sony NEX-3/5, Black
Summary description:
Sony LCS-EMC is a compact camera shoulder bag designed for Sony NEX-3 and NEX-5 mirrorless cameras. Finished in black, it offers secure storage and transport for the camera body and small accessories. The bag provides a practical carrying solution for everyday use, travel, and on-location shoots where lightweight protection and easy access are needed.