I bought this almost 3 years ago and have used it so much abs it’s held up like new this entire time. My dog weighs around 13lbs and loves going for rides. Brian is 16, hiking is much slower these days but now he can be included because of this backpack. It’s so comfortable to wear, I have never had any back or shoulder pain from wearing this for hours in a day hiking. I feel confident he’s comfortable the entire hike in this. Would absolutely recommend buying this, worth the cost. I love that you can set the bag down and it holds up or you can lay down as well. Brian is a jack russell and can sit down perfectly fine without being smashed. If you are considering buying this but are hesitant because it is pricy, I’m telling you that you will not regret spending the money on this. Brian is 16 and can no longer hike really and this has been a lifesaver for us. Because of this, he is included on hikes always.