This stroller is the best I’ve seen. I use it every day for long walks with my 15.5 year old Pug, Gladys. This is a great solution for anyone who loves to walk briskly and spend time with your dog at the same time. I’ve seen parents with babies in jogging strollers and thought, why not? It’s a very good quality stroller. It is priced higher than most but it’s very well made and of good quality materials. If I was a runner this would absolutely be sturdy enough to endure long runs. The tires are small bicycle type tires. It folds easily. The zipper-less canopy is great. Years ago I had a different stroller with a zipper closure and it broke. This one snaps closed. I looked at many different models online and the features I was looking for were, 1) something that looked like a stroller, not a cage on wheels. 2) large inflated bicycle wheels, and a single one in the front. 3) lots of mesh/screen so she could see all around her. Some strollers had a small window for the dogs to see out of. This one has mesh on the sides as well as the front and the canopy. She likes to lay down and watch the world go by to her left, right and straight ahead. I have a vacation home and I was dragging this along to and from so I decided to invest in a second and I’m glad I did. I’ve used it on hikes in the woods and on beaches. The large tires allow you to go anywhere. It maneuvers smoothly. Assembly was a breeze and the tires came fully inflated. I can tell she loves this stroller. Every time I bring it out she walks right over to it and stands there waiting for me to put her in. It’s a win/win situation for us. I get the exercise and she gets the fresh air and stimulation. The best part is that we do this together. Her veterinarian was thrilled with the idea. Elderly dogs still love to be outside!