This is a portable pet carrier. It has a breathable mesh on all three sides to ensure normal circulation of air inside the box. There is a small pocket on the outside of the bag to store things. The size of this product is: 16.2*12.1*9.45 inch, and the maximum load is 35 pounds. It comes with a folding bowl and a soft cushion. The soft cushion inside the bag is removable and can be washed by hand or machine! You can use it as a tote bag or shoulder bags with adjustable strap. Perfect for transportation by car, train, plane, etc. I use it for my dog when I travel. It fits under the seat in front of me. She is 10 pounds and small.