- Expandable Soft-Sided Carrier : Designed for small dogs, this medium-sized carrier measures 17"L x 11"W x 11"H and expands to 29"L x 17"W x 11"H by utilizing two mesh windows. Weighing only 2.65 lbs, it accommodates pets up to 13 lbs, including small or medium-sized cats, puppies, and other small animals. Ensure your pet's measurements are checked prior to your order. - Comfortable Space : The extra space allows pets to stretch out and enjoy a clear view of their surroundings, making it ideal for air travel or car trips. It provides a roomy, cozy environment reminiscent of a bed. Additionally, the carrier can be easily folded flat for convenient storage when not in use. - Practical Design : Constructed with a solid wire structure for stability while remaining flexible enough to fit under an airplane seat. The top and two side windows are crafted from anti-scratch, breathable mesh, enhancing airflow. The carrier includes a thick, washable, and removable plush pad for comfort and stability, all made from durable, well-stitched oxford cloth. - Multiple Carrying Options : Features a self-locking zipper and built-in leash to keep pets secure. Easily slides onto the extendable handle of rolling luggage for hassle-free travel. It has two flexible handles for easy hand-carrying and includes a longer, detachable shoulder strap for versatility. A side pocket provides additional storage for essentials. - Pet Carrier Airline Approved : Available in S and M sizes that comply with airline regulations for under-seat storage. For the L size, please verify compatibility with your airline's size standards. Two detachable fiber rods on the sides of the carrier top allow for easy adjustment to fit under seats when necessary.