I got these for a miniature pinscher after we went in the snow New Years and he was lifting his feet from the cold. He only wore them in the house so far for about an hour but they never came off. He doesn't like them, but after some getting used to they will be fine, and I'm sure he'll appreciate them next time there is snow. They fit tight and he doesn't have trouble walking. They could be adjusted for a dog smaller or larger, our guy is 12 lbs.The boots will work, but honestly, it's a crap shoot getting the size right. I guess I would say to order smaller than you want. My dog is a large in other boots, but was absolutely swimming in the Shearling boots that they were just way too big to wear. I found a measurement guide for the same boots on another site and used it but as others have said, the sizing is so unpredictable, I wouldn't recommend these.Best to find a good coupon and go to PetSmart where you can try them on in person.Just wish this came in smaller size as it looked great on my dog, just would not stay on his feet two seconds. Had to return. Fortunately return was very easy and full refund was given.These are ok, I think I'm going to have to send them back because they do not fit well on my dog, could just be my dog though. They are cute and seem to be made well.The boots are made so wonderfully! Very sturdy and showy. Only problem is that an xxxs is still too big for my chihuahua, like an inch and an eighth too big. They would fit a big yorkie maybe or a maltese. The package says an xxxs is for a toy poodle. I would recommend these shoes to anyone with a bigger lap dog, but I will continue to have to look for boots to fit my 3lb chihuahua.Dogs hated them. It was a good laught watching them kick them offNice. But hard for dog to get use tooOh my goodness I never laughed so hard after she started wearinf these boots... Doggies don't walk so well in them, but I was rolling on the floor... I love them... And now she walks in them much better