Based on this product's specifications, here are some alternatives and similar models
Dog/Cat Harness Trixie 12771 Size XS-S Black, adjustable chest and belly straps
Summary description:
Trixie 12771 is a pet harness for dogs and cats in size XS‑S, finished in black. It features adjustable chest and belly straps for a secure fit, quick‑release buckles and lightweight construction for daily walks, training and indoor use. Designed to distribute pressure and improve control without pulling on the neck; suitable for small breeds and kittens.