Sincerely High-quality fabricThe backpack is made of high-quality mesh fabric, lightweight, comfortable, environmentally friendly, breathable and non-irritating. Let your pets feel free and will not feel stuffy and smelly. Mesh DesignThe mesh window is ventilated and visible, allowing your pet to breathe and relax freely, and enjoy entertainment with the owner. The side and front adjustable hole rope mesh pocket can help store belts, whistles, water, snacks, snacks and other necessary items. Adjustable StrapThe front hole can be adjusted with a strap according to the size of the pet, which helps reduce the burden. The additional belt with buckle keeps the backpack stable. Safe and ComfortableThe inner rope with clip can be connected to the pet's collar/harness to prevent it from jumping or hurting itself. Make them safer. Well-ventilated design ensures the best airflow so your pet can relax. Scope of applicationS size backpack is suitable for pets under 3 kg. L size backpack is suitable for pets under 5 kg. Suitable for cats, small and medium dogs, very suitable for outdoor travel, sightseeing, camping and hiking.