Dog backpack, adjustable dog backpack for small and medium dogs, pet backpack, suitable for outdoor walking, hiking and travel (M, black) High-quality materials: The dog backpack is made of Oxford fabric, which is wear-resistant and scratch-resistant. The waterproof material is easy to clean. The high-quality fabric is durable and washable, and will not cause any irritation or side effects to your dog. The stylish design is perfect for taking your pet for daily outings and travel. Size: The pet backpack is available in multiple sizes. M: 23*12*49cm, suitable for pets with a back length of 43-50cm, a neck circumference of 38-42cm, and a weight of 12-18kg. L: 27*14*55cm, suitable for pets with a back length of 40-44cm, a neck circumference of 40-44cm, and a weight of 18-28kg. Perfect functionality: The backpack allows your dog's front legs to extend beyond the shoulder openings and head through the top opening, providing comfort while enhancing communication and security. The side breathable mesh design ensures air circulation inside the backpack, making your pet's journey more comfortable. Comfort: The shoulder straps are adjustable and ergonomically designed to fit the pet's body shape. The wider waist strap helps distribute weight to the waist for more stable and comfortable carrying. Side pockets on the pet backpack can store essential travel items and keep your hands free.