Pet Carriers Product Name: Pet Carrier Shoulder Bag Material: Nylon Size: Small (suitable for dogs within 2.5kg),(S)31*24*22cm, large (suitable for dogs within 5kg) (L)37*29*25cm Please allow slightly size errors due to manual measurement. Thank you for your understanding! Large Size-Designed: The dog Backpack is ideal for carrying pups up to 5 kg. Easily fits cats, small dogs, and most other small/medium-sized pets! Padded air mesh shoulder straps and adjustable buckles provide a supportive, hands-free fit for all body types. Ergonomics Design: This cat carrier backpack comes with chest buckles which help to reduce the burden and keeps the shoulder straps from slipping while pet moving , The back, waist, and shoulders of the backpack are equipped with pads that can absorb sweat, which makes the backpack more fit the human body and reduces the pressure on the shoulders, back and waist. Breathable & Durable: A well-ventilated design for optimal airflow, two-way entry for easy access, a top mesh window for more headroom and visibility, and thick, This backpack is firmly structured, providing ample room for your pet to move around. Comfortable and Safe: Clip your pup's harness into the interior safety harness to keep them secure so you can both focus on enjoying the views. This dog carrier includes a zippered top and reflective accents for added security.There is a soft fleece bedding for your pet resting and relaxing, easy to detach and wash. Portable & Travel: With the fixing band on the back, this kitty rucksack could compatible with luggage, is easy to carry on.The left mesh bag is convenient to get pets in and out, the right bag is suitable to store items. You will feel free when you are hiking, travel and camping even bringing your lovely pets.