I am so excited about this bright orange RuffWear back pack. I love the way it is constructed.I have a tall thin Miniature Pinture he has a big chest and a tiny neck and waste. He is about 15 pounds and 17 inches tall. He is supper fast .This back pack fits him perfectly it is on the smallest adjustment for his neck and waste and made a little bigger around his barrel chest.My dog loves to run I take him for long walks and when no one is at our park I let him off leash so he can run free . But I can’t always do that and walks do not tire him out enough. But this is a game changer.I can put a lot of stuff in the deep pockets on this bag to give him extra weight to carry to tire him out so he is not so destructive.I started off with just a free items in the small pockets like his poop bags and treats on one side and some small toys in the other side. Then I added in each side of the big pockets one small bottle of water. When we came home after his 2 mile walk he was ready to get in his bed and sleep. I love the fit, the color, how easy it is to put on a take off. I also love the nice zippers to keep his stuff secure. I thought it was expensive when I first looked at it but I was able to snag a deal on the last one in orange so I jumped on it . It would have been I good deal even at full price because this is not a toy . It holds a lot of stuff and is made extremely well and will out last my dog I believe. Thanks for an awesome product.