The XXXL were a tight fit for my female Great Dane that is big for a female Dane
596050
These seem very well made. The XXXL were a tight fit for my female Great Dane that is big for a female Dane.  She perfectly hated them and would run away with her tale between her legs when she saw me ready to put them on her.  She was humiliated beyond humiliation. Because of her lack or cooperation in putting them on her, it was difficult to put them on without help from a second person. We discontinued use, but that had nothing to do with the product although an XXXL should fit a Dane.
76953
I ordered the 2X for my grand dog who weighs 70 lbs and usually wears a 2X.  It fit my 15 lb dog.  I reordered an 8X per customer service and it was still too tight.  I will call to return it.  It is a cute hoodie and would have liked to have my two dogs to have matching hoodied
1095777
LOVE!!!!! The biggest size fits my male Great Dane perfectly. He is a big guy standing at 6'3 on his hind legs. It covers his whole back, and you can reverse it so you have two options for color.
62394
I have a 70 lb female lab. That is in heat. I purchase XL based on pkg says 20 lbs +. The Fit was great, BUT the tail hole was so large that her girl parts were showing, so needless to say would not help in her situation. Concerned if I go down a size they will not fit around her. So, sadly very disappointed in this brand.
3134983
I felt the size would fit my 90 pound St Bernard puppy but it was super tight. Made of good quality.
3459597
Rating 4 stars because there needs to be a better sizing chart. I had to look through reviews and pictures to see what size someone might have bought for their dog. I saw someone say the xl fit with just a little extra room on his 65lbs husky. Not so much on my 65lbs pit. Couldnt even begin to put it on it was so tight. Other than that the product itself seemed nice.
593807
I got the XL and they would fit a 30-40lb lab at most.  The lack of size chart is the downside!  Since the XL didn't fit my dog I can't really comment on how well they worked other than to say that they look well made and if they did fit the dog they look like they would stay on.
4914972
This coat is great quality and the length was perfect, but be wary if you have a big chested dog. I bought the XL for my Olde English Bulldogge and it fits, but I can just barely get the velcro to fasten around his chest. It might not fit him for very long since he's only 10 months old. A shame since it's such a nice coat and looks so cute on him!
179601
The material is great the but fit not so.  I have 2 yorkies and one is 4lbs and the other is 7lbs.  I ordered small and xsmall.  The xsmall fits my 7lb dog but the neck hole is so big he can get his legs out.  Just really annoying.  Returning.
1341865
This IS a great item, but I wish there was an XXXL.  We had to get the XXL for our Irish Wolfhound, and it's a little too snug right around his ribs.  If Zack and Zoey made XXXL, I would love to purchase more items for him.
2565229
We got our fancy harnesses in today. I got a LG and XL and they both fit perfectly. The dogs were strutting around like supermodels.
3838210
My large was a perfect fit for my daughter who wears a size 2.  I would think I need an XXL to fit me.  Very poorly sized.
3178856
Good quality.  Just be sure to look at the size chart and measure your dog.  Dont guess on size based on how large you consider your dog.  I had to buy an XL for my French Bulldog.  Not sure my English bulldog or German shepherd would even fit in an XXXL.
4329087
I got the extra large for my 70lb Siberian Husky. It is tight on her chest but too big for her body. Maybe it's just the way my dog is built, but it isn't the best fit. Otherwise I love it. Nice material and though the fit is awkward she can wear it on game days for a few hours with no problem.
4784982
My dog wears an XXS and she weighs just one pound. All of the other clothes I have bought from this seller fit her perfectly, but this is WAY too small to fit even her.
2617880
My dog is a husky mix with a deep chest and this costume was too tight and constricting, despite having measured my dog first for the appropriate size. Instead of reordering the same shirt in XXL, I opted for the Uhura skirt in XXL, which has a more open construction. I still had to cut and resew the sleeves, as they were too constricting for her to walk. Be aware that these shirts are not designed to fit every dog body type, or be prepared to do some tailoring to make your pup more comfortable.
1374706
I have a 120 lb male German Shepherd with a  chest girth of 38 inches. I went with the XL size. It never seemed to fit securely and the harnesses would slide from one side to the other. I don't think dropping down to the L size would have resolved the problem. I believe it's because only the chest strap is adjustable. If the padded neck strap was also adjustable then this would be the perfect harness. I appreciate Amazon allowing me to return it even though my dog wore it once.