Capacity: two side pockets with huge capacity, you could store dog food, water, poop bags, toys, collapsible dog bowls, first aid, etc. It is convenient to walk dogs. Bag Top with a mesh breathable window to ensure smooth air. Material: Waterproof fabric,Sponge mesh, super air-permeable and comfortable, which reduces the pressure on the dog back. Free of PVC material, super eco-friendly for pets. The bottom is equipped with a detachable dual purpose lining board, effectively the weight of pet, to prevent the bag deformation.. Lightweight & Easy care & Durable & Not deformed & Not fade.