The pet carrier bag is made of durable oxford and breathable mesh fabric, lightweight and comfortable. Suitable for small dogs and cats. Head Out design with drawstring around the neck ensures comfort and safety for your pet. A safe hook inside can attach to your pet's collar, prevent it from jumping out. The carrying bag can be opened wide with the zipper design for easy in and out of the pet. animal. There is a pocket on the shoulder strap to store some small items like keys, whistle. Wide adjustable shoulder strap relieves pressure from your shoulders. The hands-free function is perfect for daily use, walking, traveling and other outdoor activities. Size S: 40x22x10cm/15.7"x8.6"x3.9", suitable for pets' weight pet under 3kg/6.6lb; Size L: 47x29x14cm/18.5"x11.4"x5.5", suitable for pet weight under 6kg/13.2lb.