Gooby Simple Step in III Harness - Purple, X-Small - Small Dog Harness with Scratch Resistant Outer Vest - Soft Inner Mesh Harness for Small, Medium Dogs

Easy to use, comfortable for our fussy dogs to wear and no fear of them eacaping

Well, I like it’s really easy on an easy off

The buckles and straps are backwards so they do not stay in the right tightness.

My Chihuahua is 11 months old and 5lbs and this just fits comfortably without being too big. It wouldn't be suited for a Chihuahua or tiny dog as a puppy. They would likely slip right out! My dog showed no signs of discomfort while wearing it.

Small worked great, but he "outgrew" it. However, the size ranges are VERY inaccurate. My dog measures 17 inches around the body now and neither the small or medium fits him like it says it would (S: 14.25-17/M: 16.75-21.5). I can buckle the small on him but the D rings are 3 inches apart I can't clip them to the leash. Went straight to donation. The medium is TOO big for him, it's so loose I can stick my entire hand underneath and when I walk him in it he can get an elbow out. The buckle and strap tighteners are hard and very stiff to move compared to the smooth glide of the he small. It's not defective either, I got the M neoprene sport x shaped one and it's just as difficult with the tighteners. So yeah not escape proof.