Best Pet Supplies Voyager Step-in Air Harness - All Weather Mesh, Reflective, No Pull Harness for Dogs, Cats - Secure with Hook & Loop Fastener, Buckle, Double D-Rings - Blue, XS

This is the harness that we’ve had the best luck with. Super soft, so doesn’t rub. My boys are 6 lbs and 20ish lbs. Jack is heavy Chihuahua, but size is long bodied and short legged like a dachshund. https://a.co/d/09dxDklE