Doggles Dog Harness Dress for Small Dogs - Pink Pet Costume & Fashion Accessory | Perfect for Halloween, Parties & Photo Shoots

I ordered the XS pink harness for my 5 lb Chihuahua Coki. We are currently in training with her and she is always biting the harnesses we put on her. She doesn't mind clothes at all but the harness not so much. Luckily I got the XS for her and it seems to fit her perfectly....maybe a little on the snug side but it gives her no space to grab at the fabric to chew on it. And, of course, it is as cute as can be. When my husband saw he thought she was as cute as a bug.I got the black "harley"looking one for my 8 lb male Chihuahua "Oliver" and I got the Small size. He was absolutely swimming in it. I put the pink one on him which aside from looking ridiculous it was pretty snug on him. I am going to go ahead and get the XS for him. As it is high enough so he can't pee on it and it looks cool. haha. But I would agree with most posters that these things run SMALL! As there really isn't much of a sizing chart.Good luck. Happy Doggy Fashions!