Spacious and Expandable Design: Dual-sided expansion from 15.5"×8"×13" (compact) to 32"×13"×14" (spacious) provides adjustable space for pets up to 25 lbs. Ultra-lightweight at 1.8 lbs (810g), it transitions seamlessly from daily commutes to hiking adventures. (When selecting a carrier, please do not rely solely on your pet's weight. Measure their height, length, and width to ensure a comfortable fit.) Durable and Breathable Materialsg: Crafted with stain-resistant, waterproof fabric and a mesh roof vent for airflow, this carrier keeps pets cool and secure. The soft fleece-lined interior ensures comfort, while the 15.5" base fits most airline under-seat requirements. Interactive and Convenient Features: The carrier includes a breathable interactive skylight, allowing your pet to enjoy the view and interact with the surroundings. It also features a luggage strap for easy attachment to your suitcase, a bottom zipper design for daily storage, and a 360° multi-pocket design with six pockets—one front, two sides, and three back—for storing pet supplies. Multiple Carrying Options with Comfort: Designed for various carrying methods, this carrier can be used as a backpack, shoulder bag, or hand-held carrier. The padded handle and shoulder straps are designed to reduce pressure, ensuring comfort during extended use. An internal safety leash is included to prevent your pet from escaping. Suitable for Small to Medium-Sized Pets: Designed for cats (e.g., Siamese, Ragdoll) and small dogs (e.g., Chihuahuas, Shih Tzus) under 25 lbs. The 32" expanded space ensures comfort for pets up to 12" tall, perfect for long trips or vet visits. Transform your pet transportation experience with this innovative cat carrier backpack, perfect for adventures with your feline friend. This versatile carrier combines the functionality of a traditional pet carrier with the convenience of a backpack, making it ideal for travel, hiking, and camping trips. The hands-free design allows you to carry your cat comfortably while keeping your arms free for other activities. Features multiple ventilation points to ensure your pet stays comfortable during transport. The durable construction provides a secure space for your cat, while the padded shoulder straps offer comfort for the carrier. Whether you're heading to the vet, taking a weekend camping trip, or exploring new trails, this carrier backpack keeps your furry companion safe and close. The spacious interior gives your cat room to move while maintaining a compact profile that's easy to manage. Make every journey with your pet more enjoyable with this practical and stylish carrier backpack.