Overview: With or WIthout Trolley Pet Carrier Bag Perfect Backpacks For Cats & Dogs Suggested Weight: 0-12lbs for small to medium cats, 0-12lbs for Dogs, puppies. Most Airline Approved under the seat. Important: Please check your airline requirements before traveling. SPACE CAPSULE APPEARANCE- The unique and popular space capsule design makes your pet feel safer, comfortable and lets it have a broader vision of the outside BREATHABLE & DURABLE - The solid ABS material and oxford cloth with nine-hole and air mesh bring both better air circulation and an anti-scratch effect Transparent DesignProtection to your pet under dust condition. The material used for the carrier allows your pet to enjoy the sunshine and scenery and to interact with the outside world. The transparent design provides easy viewing so that your pet can see the world and you can see your pet. Easy to carryThe pet backpack carrier provides more outdoor possibilities, such as traveling, riding, walking, camping, hiking, and more outdoor activities. Specifications: Material: Nylon Capacity: 20 pattern: plain Hardness: medium to hard Package Content Trolley Pet Backpack *1