Why do all your photos have the harness photoshopped onto stock photos?

I guess no one sent in photos. It looks like this. I went to a pet shop before ordering mine and examined their harnesses . The Barkbay one is of better quality than those at the pet shop at a lower price, too

Our Labrador has a chest size [38"] right at the limit of your largest size. Will this fit? And are the rings and straps strong and sturdy?-

My dog measures 36" at the deepest part of his chest. Fully let out, I think it would fit your dog. It has a leash ring at the top, and one at the bottom (between front legs). It is made of nylon, as are the fasteners. It's very sturdy and we are very happy with it. The dog is comfortable wearing it. I hope this helps.

My dogs girth is between26 and 27, she is only 7 months old, should I go with the medium or the large, she is around 40 ish lbs

i would get the medium. i use the medium for a 50 lb golden retriever mix and the large for a 60-65 lb golden retriever.

Medium. Measure your dog's chest and use the sizing chart. It's accurate. My dog is 31 lbs with a 24 1/2" chest. Medium is perfect, with plenty of room for adjustment. Really sturdy and well made. :)