【Expandable Comfort That Outperforms Standard Carriers】Not just portable—transformable. With a single unzip, this backpack instantly expands to nearly 2X its original space, giving your pet room to stretch, turn, and relax. Unlike standard carriers that feel cramped, this design delivers true mobility comfort, making it ideal for longer trips, outdoor use, and anxious pets. 【Breathable, Shaded & Stress-Free Travel Environment】Designed for all-day comfort in any setting, this carrier combines 3 large mesh panels, 9 ventilation holes, and a tinted panoramic window to balance airflow, visibility, and light exposure. Unlike fixed windows, our pull-down sunshade lets you control light, heat, and comfort anytime—keeping your pet cool, relaxed, and protected from harsh sunlight. 【Ergonomic Support System for Effortless Carrying】Engineered with human comfort in mind, this backpack features thick-padded shoulder straps + chest buckle + waist support to evenly distribute weight and reduce strain. No shoulder digging. No back pressure. Just stable, balanced carrying—even on long walks or travel days. 【Reinforced Structure and Anti-Escape Safety Design】Unlike soft carriers that collapse or deform, this backpack features a reinforced frame structure that keeps its shape at all times. Open the top window for interaction, while the built-in safety leash keeps your pet secure—giving them freedom without risk. 【Measure for the Perfect Fit】The dimensions of this pet backpack carrier are 13.4"L × 10.2"W × 16.5"H (34 × 25.9 × 41.9 cm). It is recommended for cats weighing 8–18 lbs (3.6–8 kg) and small dogs weighing 6–12 lbs (3–6 kg). Please do not rely on weight alone when selecting a size—measure your pet’s body length (front legs to the base of the tail), which should be no more than 14" (35 cm), and height (floor to the top of the head), which should be no more than 13" (33 cm) to ensure the best fit. 【Travel-Ready Safe Haven for Cats & Small Dogs】More than a carrier—it’s a portable comfort zone. Perfect for vet visits, hikes, travel, or daily outings, this backpack helps reduce pet anxiety by providing a stable, enclosed, and familiar space wherever you go. At COVONO, we focus on taking perfect care of your pet and are committed to providing you with something different, something better. The COVONO Expandable Pet Carrier Backpack comes with rear expansion design, large transparent acrylic window and super ventilated system, is designed to keep your pet protected, secure and comfortable when you are out with your pet, such as routine trips to the vet, travel, hiking or camping.

360° Airflow
The 3 sides of the backpack come with 3 mesh windows and 9 venting holes, to keep the air circulating and fresh. Your pet can breathe freely and stay comfortable.

Expandable Space
With the expandable design, the space inside the backpack can be doubled. The expandable part uses stable steel frame, can bear load without deformation.

4 Entrances
The backpack features front, rear and side openings, which allow for effortless entry and stress-free loading.

Ergonomic Design
It provides adjustable padded shoulder straps, sternum buckle and waist buckles, to reduce the burden on shoulders and maintain the stability during travel.

Improved Mat
The hard wooden board inside the cozy fleece mat can enhance the stability of the base while the large Velcro ensures the mat can be kept in place easily, no need to deliberately adjust the position of the mat.

Transparent Window
It features a large transparent acrylic window, which is perfect for your pet to look out and for you to check on your pet (tear off the protective films on the both sides of the acrylic board before use).

Attention:
Measure your pet before purchasing. Do not select the backpack size based on weight only, please reference your pet's length and height in selecting a backpack size.