Product Dimensions: This dog backpack is available in 3 sizes for cats and small and medium-sized dogs. Before purchasing, be sure to measure your pet's chest circumference and the distance between the front and rear legs, and then select the appropriate size of the front dog carrier according to the size chart. 5-Hole Design: The front dog backpack for medium and small dogs has 5 holes to expose your pet's limbs and tail, so your pet won't feel constrained. Your pet's hands and feet can be pulled out, making your pet feel comfortable and relaxed. High Quality: The travel bag for medium and small dogs is made of canvas fabric, which is durable and easy to wash. The front of the medium and small dog carrier is made of mesh, which is refreshing and breathable without being stuffy. The exquisite and fine stitching protects the pet's fur and skin. Safety: The zippers on both sides of the dog accessory travel bag make it easy to insert the dog, while the safety hook for attaching the