Comfortable pet carrier made of breathable mesh material. This is a clean pet carrier with little use. From the trusted and well-known brand K9. The inside is also in beautiful condition. - Brand: K9 - Model Name: SPORT SACK™ - Color: Black - Features: Mesh material, breathable, adjustable straps From the following HP: Kg Sport Sack® ｜Dog backpack carrier born in America! K9 SportSack® is a dog backpack carrier born in America. Unlike ordinary backpacks, it is designed specifically for dogs with holes for the dog's arms and straps to support the back, with safety in mind. It not only has a carrying function, but also has plenty of space to put drinks, snacks, toys, etc. It is recommended not only for everyday travel, but also in crowded places where dogs have difficulty walking, in situations where your hands are occupied such as cycling and mountain climbing, and when you want to take pictures while traveling! Also, because it can be folded up small, it is useful to have it in your bag in case your dog is unable to walk when you are out and about, or in the event of a disaster where your dog cannot walk on the ground due to rubble or broken glass. It can also be used in a front-carrying style that allows your dog to feel secure. Since the dog is sitting in the sack, the dog will not get tired. Thank you for viewing.