Product Description Color: red, gray, black Small: 23 x 12 x 42 cm, M: 25 x 12 x 48 cm L: 28 x 12 x 57cm Material: high quality Oxford cloth Contents: 1 x Dog Backpack. 1. Comfortable Material - This bag is made of machine washable, breathable and soft fabric. The material is thick enough to ensure softness and make your pet feel comfortable, and there are large ventilation windows on both sides of the backpack for comfort and breathability. 2. SAFE - This pet tote bag keeps your pet light and comes with a safety buckle to keep your pet safe Pets are safe. 3. Outdoor life-saving whistle - whistle for help in case of emergency. The shoulder strap sliders can be adjusted up and down, suitable for various groups of people. 4. SUPER COMFORTABLE FIT AND COMFORT - The back and shoulder straps are extra thickly padded for extra comfort on long trips. Zipper pocket, can help you store coins or equipment, keys, cards, etc. 5. I will follow you wherever you go - whether you go, walk, hike, weekend adventure, travel, shopping, biking, underground, etc. Suitable for medium dogs, corgi, teddy, french bulldog, shiba inu , not suitable for large dogs.