Product Dimensions: 21.7L x 13W x 15H

Special Feature: Adjustable Volume

Collapsible and Expandable - This small dog backpack carrier features an expandable back, providing your pet with additional space to move around and reducing their anxiety. The collapsible design allows you to save space when not in use.

Breathable and Visible - Equipped with 4-7 tear-resistant breathable mesh panels (depending on whether it's expandable or not) on the front, top, and sides, this cat backpack ensures better ventilation and allows you to easily see your pet inside. The top of the backpack can be opened, giving your small dog the option to stick their head out.

Larger Size than Most - With expanded dimensions of 21.7 x 13 x 15 and unexpanded dimensions of 13 x 9.8 x 15, it is suitable for pets under 15 lbs, such as most small breed dogs.

Travel Friendly - This portable pet backpack comes with a breathable back panel, padded adjustable shoulder straps, and a chest buckle, making it ideal for traveling, hiking, walking, and other outdoor activities. It's the perfect travel carrier backpack for small dogs.

Premium and Functional - Crafted from quality polyester and anti-scratch mesh, this expandable dog backpack is both sturdy and safe for your pets. It includes 2 side pockets for storing pet supplies and a built-in safety leash to prevent your pet from running away.