1. [LARGE CAPACITY DOG BAG]This pet duffel bag is made of sturdy and breathable fabric, the head can be poked out to protect your dog's breathing while not boring him, increasing the interaction between your little one and you. The large capacity design is suitable for larger fur , size L is suitable for 8.8-12.1 lbs pets, size XL is suitable for 12.1-16.5 lbs pets, size XXL is suitable for 16.5-22 lbs pets 2. [SAFE AND COMFORTABLE]This two-shoulder dog backpack comes with 3-fold protection to prevent your dog from breaking . The bottom has holes reserved for your beloved pet's tail, so his tail doesn't have to be curled up in the backpack for extra comfort and peace of mind. The two-shoulder design also reduces your stress and improves your comfort 3. [ADJUSTABLE]Our pet front chest duffel bag is designed with a neck drawstring that is both comfortable and secure, allowing your little one to feel relaxed. With a four point support, your dog's four feet are covered without worrying about your dog falling in the middle of the day, and at the same time, it allows him to de-stress better 4. [WEARING STYLES]Our traveling pet backbags can be carried not only in the front but also in the back. The front back allows you to take better care of your beloved pet and increase interaction. The back is also very secure and will not interfere with your biking or walking speed