Product Details: The pet sling comes in L and M sizes. Please measure your pet's weight and size before purchasing. Please refer to our second picture (measurement method and size chart). Humanized Design: Adopt a zippered pocket, and the puppy strap can be extended into the pet to pet, thereby enhancing the pet's sense of security. At the same time, we can also use this pocket to adjust the pet's arms and legs and body sitting posture,making you and the pet more comfortable and safe. Comfortable And Breathable: Pet out messenger bag, made of high-quality nylon and mesh, is soft and durable. Breathable mesh fabric prevents pets from getting hot, while a thickened bottom prevents pets from scratching. In addition, using a comfortable sponge wide shoulder strap can reduce the pressure on the shoulders and neck. Enjoy outdoor time with your pet! Quadruple Safety Protection: The dog hunchback crossbody bag comes with a built-in safety hook that can be connected to the pet collar to prevent the dog from jumping out. There is a velcro on the outside of the zipper to prevent it from slipping. An adjustable neck strap keeps your pet from choking hazards. At the same time, the reflective belt design can make you and your pet safer at night. Handsfree Design: A dog satchel can liberate your hands and allow you to carry your pet anytime and anywhere. Ideal for outdoor activities such as cycling, walking, and traveling. In addition, an extended and reinforced bag and D-buckle design can be used to store small tools.